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381238750080 = 2732566187283
BaseRepresentation
bin1011000110000111001…
…10011010101110000000
31100110001011222010101200
411203003212122232000
522221234110000310
6451045541301200
736354310623246
oct5430346325600
91313034863350
10381238750080
11137756376681
1261a78104800
1329c487a4826
1414648616796
159db47be9c0
hex58c399ab80

381238750080 has 96 divisors (see below), whose sum is σ = 1316465078760. Its totient is φ = 101663665152.

The previous prime is 381238750073. The next prime is 381238750091. The reversal of 381238750080 is 80057832183.

381238750080 is a `hidden beast` number, since 38 + 1 + 2 + 38 + 7 + 500 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×3812387500803 (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33087882 + ... + 33099401.

Almost surely, 2381238750080 is an apocalyptic number.

381238750080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381238750080 is an abundant number, since it is smaller than the sum of its proper divisors (935226328680).

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

381238750080 is a wasteful number, since it uses less digits than its factorization.

381238750080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66187308 (or 66187293 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 381238750080 in words is "three hundred eighty-one billion, two hundred thirty-eight million, seven hundred fifty thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 288 320 360 384 480 576 640 720 960 1152 1440 1920 2880 5760 66187283 132374566 198561849 264749132 330936415 397123698 529498264 595685547 661872830 794247396 992809245 1058996528 1191371094 1323745660 1588494792 1985618490 2117993056 2382742188 2647491320 2978427735 3176989584 3971236980 4235986112 4765484376 5294982640 5956855470 6353979168 7942473960 8471972224 9530968752 10589965280 11913710940 12707958336 15884947920 19061937504 21179930560 23827421880 25415916672 31769895840 38123875008 42359861120 47654843760 63539791680 76247750016 95309687520 127079583360 190619375040 381238750080