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38401123782076 = 221121923917472179
BaseRepresentation
bin10001011101100111101010…
…10101111000110110111100
312000222010000100020120112121
420232303311111320312330
520013131000142011301
6213401122134012324
711042250434323156
oct1056636525706674
9160863010216477
1038401123782076
1111265909294800
12438248a7a70a4
13185729742b143
1496a8a515bad6
15468d7c11a3a1
hex22ecf5578dbc

38401123782076 has 72 divisors (see below), whose sum is σ = 78079677984000. Its totient is φ = 16467178321440.

The previous prime is 38401123782001. The next prime is 38401123782101. The reversal of 38401123782076 is 67028732110483.

It is a super-3 number, since 3×384011237820763 (a number of 42 digits) contains 333 as substring.

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, 6538246 + ... + 10933933.

It is an arithmetic number, because the mean of its divisors is an integer number (1084439972000).

Almost surely, 238401123782076 is an apocalyptic number.

It is an amenable number.

38401123782076 is an abundant number, since it is smaller than the sum of its proper divisors (39678554201924).

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

38401123782076 is a wasteful number, since it uses less digits than its factorization.

38401123782076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17472463 (or 17472450 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 38401123782076 in words is "thirty-eight trillion, four hundred one billion, one hundred twenty-three million, seven hundred eighty-two thousand, seventy-six".

Divisors: 1 2 4 11 19 22 38 44 76 121 209 239 242 418 478 484 836 956 2299 2629 4541 4598 5258 9082 9196 10516 18164 28919 49951 57838 99902 115676 199804 549461 1098922 2197844 17472179 34944358 69888716 192193969 331971401 384387938 663942802 768775876 1327885604 2114133659 3651685411 4175850781 4228267318 7303370822 8351701562 8456534636 14606741644 16703403124 40168539521 45934358591 79341164839 80337079042 91868717182 158682329678 160674158084 183737434364 317364659356 505277944501 872752813229 1010555889002 1745505626458 2021111778004 3491011252916 9600280945519 19200561891038 38401123782076