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144555142400 = 285297232853
BaseRepresentation
bin1000011010100000101…
…0000110110100000000
3111211010022000002101222
42012220022012310000
54332022104024100
6150224022214212
713305132302564
oct2065012066400
9454108002358
10144555142400
115633a678039
1224023284368
1310829504726
146dd45ad6a4
153b60aa3485
hex21a8286d00

144555142400 has 108 divisors (see below), whose sum is σ = 361486740972. Its totient is φ = 57225707520.

The previous prime is 144555142399. The next prime is 144555142451. The reversal of 144555142400 is 4241555441.

It can be written as a sum of positive squares in 6 ways, for example, as 4511540224 + 140043602176 = 67168^2 + 374224^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504374 + ... + 737226.

Almost surely, 2144555142400 is an apocalyptic number.

144555142400 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 144555142400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180743370486).

144555142400 is an abundant number, since it is smaller than the sum of its proper divisors (216931598572).

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

144555142400 is an equidigital number, since it uses as much as digits as its factorization.

144555142400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232976 (or 232957 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 144555142400 its reverse (4241555441), we get a palindrome (148796697841).

The spelling of 144555142400 in words is "one hundred forty-four billion, five hundred fifty-five million, one hundred forty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 97 100 128 160 194 200 256 320 388 400 485 640 776 800 970 1280 1552 1600 1940 2425 3104 3200 3880 4850 6208 6400 7760 9700 12416 15520 19400 24832 31040 38800 62080 77600 124160 155200 232853 310400 465706 620800 931412 1164265 1862824 2328530 3725648 4657060 5821325 7451296 9314120 11642650 14902592 18628240 22586741 23285300 29805184 37256480 45173482 46570600 59610368 74512960 90346964 93141200 112933705 149025920 180693928 186282400 225867410 298051840 361387856 372564800 451734820 564668525 722775712 745129600 903469640 1129337050 1445551424 1490259200 1806939280 2258674100 2891102848 3613878560 4517348200 5782205696 7227757120 9034696400 14455514240 18069392800 28911028480 36138785600 72277571200 144555142400