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38387752873525 = 52111928572571557
BaseRepresentation
bin10001011101001110110000…
…10111111010111000110101
312000220211111111112001012101
420232213120113322320311
520012421104213423100
6213351031253022101
711041265205426406
oct1056473027727065
9160824444461171
1038387752873525
1111260177804260
12437b978924931
131855c46262433
14969d974419ad
1546884834e86a
hex22e9d85fae35

38387752873525 has 48 divisors (see below), whose sum is σ = 54680374964160. Its totient is φ = 26439710169600.

The previous prime is 38387752873523. The next prime is 38387752873543. The reversal of 38387752873525 is 52537825778383.

It is not a de Polignac number, because 38387752873525 - 21 = 38387752873523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38387752873523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13642047 + ... + 16213603.

It is an arithmetic number, because the mean of its divisors is an integer number (1139174478420).

Almost surely, 238387752873525 is an apocalyptic number.

It is an amenable number.

38387752873525 is a deficient number, since it is larger than the sum of its proper divisors (16292622090635).

38387752873525 is a wasteful number, since it uses less digits than its factorization.

38387752873525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574454 (or 2574449 counting only the distinct ones).

The product of its digits is 2370816000, while the sum is 73.

The spelling of 38387752873525 in words is "thirty-eight trillion, three hundred eighty-seven billion, seven hundred fifty-two million, eight hundred seventy-three thousand, five hundred twenty-five".

Divisors: 1 5 11 19 25 55 95 209 275 475 1045 2857 5225 14285 31427 54283 71425 157135 271415 597113 785675 1357075 2571557 2985565 12857785 14927825 28287127 48859583 64288925 141435635 244297915 537455413 707178175 1221489575 2687277065 7346938349 13436385325 36734691745 80816321839 139591828631 183673458725 404081609195 697959143155 1535510114941 2020408045975 3489795715775 7677550574705 38387752873525