Search a number
-
+
13201938957 = 337177766931
BaseRepresentation
bin11000100101110010…
…11001101000001101
31021002001202222122010
430102321121220031
5204014144021312
610022003211433
7645104425644
oct142271315015
937061688563
1013201938957
115665172159
122685376b79
1313251876cc
148d34d435b
1552404093c
hex312e59a0d

13201938957 has 16 divisors (see below), whose sum is σ = 18088774592. Its totient is φ = 8558472960.

The previous prime is 13201938947. The next prime is 13201938961. The reversal of 13201938957 is 75983910231.

It is not a de Polignac number, because 13201938957 - 210 = 13201937933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201938947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163782 + ... + 230712.

It is an arithmetic number, because the mean of its divisors is an integer number (1130548412).

Almost surely, 213201938957 is an apocalyptic number.

It is an amenable number.

13201938957 is a deficient number, since it is larger than the sum of its proper divisors (4886835635).

13201938957 is a wasteful number, since it uses less digits than its factorization.

13201938957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68748.

The product of its (nonzero) digits is 408240, while the sum is 48.

The spelling of 13201938957 in words is "thirteen billion, two hundred one million, nine hundred thirty-eight thousand, nine hundred fifty-seven".

Divisors: 1 3 37 111 1777 5331 65749 66931 197247 200793 2476447 7429341 118936387 356809161 4400646319 13201938957