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13121544151 = 711091695509
BaseRepresentation
bin11000011100001101…
…01101111111010111
31020212110111111200201
430032012231333113
5203333103403101
610010012121331
7643110166522
oct141606557727
936773444621
1013121544151
115623851371
122662466247
131311619711
148c6967bb9
1551be5ee01
hex30e1adfd7

13121544151 has 8 divisors (see below), whose sum is σ = 13428439200. Its totient is φ = 12818040480.

The previous prime is 13121544113. The next prime is 13121544157. The reversal of 13121544151 is 15144512131.

It is a happy number.

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 13121544151 - 211 = 13121542103 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 (13121544157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840016 + ... + 855493.

It is an arithmetic number, because the mean of its divisors is an integer number (1678554900).

Almost surely, 213121544151 is an apocalyptic number.

13121544151 is a deficient number, since it is larger than the sum of its proper divisors (306895049).

13121544151 is a wasteful number, since it uses less digits than its factorization.

13121544151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695689.

The product of its digits is 2400, while the sum is 28.

The spelling of 13121544151 in words is "thirteen billion, one hundred twenty-one million, five hundred forty-four thousand, one hundred fifty-one".

Divisors: 1 71 109 7739 1695509 120381139 184810481 13121544151