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149470973280 = 25325523198469
BaseRepresentation
bin1000101100110100101…
…0100000110101100000
3112021210220000011122100
42023031022200311200
54422104032121110
6152355505410400
713541013211206
oct2131512406540
9467726004570
10149470973280
1158432516592
1224b75639a00
1311130aa33b5
14733d401076
153d4c430bc0
hex22cd2a0d60

149470973280 has 144 divisors (see below), whose sum is σ = 511047547920. Its totient is φ = 39782513664.

The previous prime is 149470973273. The next prime is 149470973291. The reversal of 149470973280 is 82379074941.

149470973280 is a `hidden beast` number, since 1 + 4 + 9 + 470 + 97 + 3 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 653886 + ... + 852354.

It is an arithmetic number, because the mean of its divisors is an integer number (3548941305).

Almost surely, 2149470973280 is an apocalyptic number.

149470973280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149470973280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255523773960).

149470973280 is an abundant number, since it is smaller than the sum of its proper divisors (361576574640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149470973280 is a wasteful number, since it uses less digits than its factorization.

149470973280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199013 (or 199002 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 149470973280 in words is "one hundred forty-nine billion, four hundred seventy million, nine hundred seventy-three thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 523 720 1046 1440 1569 2092 2615 3138 4184 4707 5230 6276 7845 8368 9414 10460 12552 15690 16736 18828 20920 23535 25104 31380 37656 41840 47070 50208 62760 75312 83680 94140 125520 150624 188280 198469 251040 376560 396938 595407 753120 793876 992345 1190814 1587752 1786221 1984690 2381628 2977035 3175504 3572442 3969380 4763256 5954070 6351008 7144884 7938760 8931105 9526512 11908140 14289768 15877520 17862210 19053024 23816280 28579536 31755040 35724420 47632560 57159072 71448840 95265120 103799287 142897680 207598574 285795360 311397861 415197148 518996435 622795722 830394296 934193583 1037992870 1245591444 1556989305 1660788592 1868387166 2075985740 2491182888 3113978610 3321577184 3736774332 4151971480 4670967915 4982365776 6227957220 7473548664 8303942960 9341935830 9964731552 12455914440 14947097328 16607885920 18683871660 24911828880 29894194656 37367743320 49823657760 74735486640 149470973280