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138762625757 = 7153611290491
BaseRepresentation
bin1000000100111011100…
…1011010001011011101
3111021011121100202101112
42001032321122023131
54233141213011012
6143425140351405
713011444600140
oct2011671321335
9437147322345
10138762625757
11539379805a8
1222a873a5565
13101154131a2
146a05170057
1539222a2122
hex204ee5a2dd

138762625757 has 8 divisors (see below), whose sum is σ = 158596304832. Its totient is φ = 118931558400.

The previous prime is 138762625747. The next prime is 138762625823. The reversal of 138762625757 is 757526267831.

138762625757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138762625757 - 212 = 138762621661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138762625696 and 138762625705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138762625717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537719 + ... + 752772.

It is an arithmetic number, because the mean of its divisors is an integer number (19824538104).

Almost surely, 2138762625757 is an apocalyptic number.

It is an amenable number.

138762625757 is a deficient number, since it is larger than the sum of its proper divisors (19833679075).

138762625757 is a wasteful number, since it uses less digits than its factorization.

138762625757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305859.

The product of its digits is 29635200, while the sum is 59.

The spelling of 138762625757 in words is "one hundred thirty-eight billion, seven hundred sixty-two million, six hundred twenty-five thousand, seven hundred fifty-seven".

Divisors: 1 7 15361 107527 1290491 9033437 19823232251 138762625757