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138372285757 = 17251108729833
BaseRepresentation
bin1000000011011110100…
…0011000010100111101
3111020011101212102120111
42000313220120110331
54231341301121012
6143322314150021
712665665010506
oct2006750302475
9436141772514
10138372285757
1153757603362
1222998722311
13100825a4784
1469a93a1bad
1538ecd9aba7
hex2037a1853d

138372285757 has 16 divisors (see below), whose sum is σ = 147235802112. Its totient is φ = 129590208000.

The previous prime is 138372285721. The next prime is 138372285809. The reversal of 138372285757 is 757582273831.

It is a cyclic number.

It is not a de Polignac number, because 138372285757 - 215 = 138372252989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138372285707) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4623313 + ... + 4653145.

It is an arithmetic number, because the mean of its divisors is an integer number (9202237632).

Almost surely, 2138372285757 is an apocalyptic number.

138372285757 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

138372285757 is a deficient number, since it is larger than the sum of its proper divisors (8863516355).

138372285757 is a wasteful number, since it uses less digits than its factorization.

138372285757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31188.

The product of its digits is 19756800, while the sum is 58.

The spelling of 138372285757 in words is "one hundred thirty-eight billion, three hundred seventy-two million, two hundred eighty-five thousand, seven hundred fifty-seven".

Divisors: 1 17 251 1087 4267 18479 29833 272837 507161 4638229 7488083 32428471 127297411 551284007 8139546221 138372285757