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13837138507 = 137101001011
BaseRepresentation
bin11001110001100000…
…11111101001001011
31022201100000110121101
430320300133221023
5211314301413012
610205013522231
7666616510453
oct147060375113
938640013541
1013837138507
115960781a65
122822043377
1313c6958b2a
14953a00d63
1555ebb2d57
hex338c1fa4b

13837138507 has 4 divisors (see below), whose sum is σ = 13938139656. Its totient is φ = 13736137360.

The previous prime is 13837138481. The next prime is 13837138519. The reversal of 13837138507 is 70583173831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70583173831 = 163334321507.

It is a cyclic number.

It is not a de Polignac number, because 13837138507 - 219 = 13836614219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13837136507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50500369 + ... + 50500642.

It is an arithmetic number, because the mean of its divisors is an integer number (3484534914).

Almost surely, 213837138507 is an apocalyptic number.

13837138507 is a deficient number, since it is larger than the sum of its proper divisors (101001149).

13837138507 is a wasteful number, since it uses less digits than its factorization.

13837138507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101001148.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 13837138507 in words is "thirteen billion, eight hundred thirty-seven million, one hundred thirty-eight thousand, five hundred seven".

Divisors: 1 137 101001011 13837138507