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13126169973 = 371913272543
BaseRepresentation
bin11000011100110000…
…10111010101110101
31020212210012112010110
430032120113111311
5203340244414343
610010255213233
7643164414060
oct141630272565
936783175113
1013126169973
115626420864
122663b17219
1313125790a7
148c740d8d7
1551c575833
hex30e617575

13126169973 has 16 divisors (see below), whose sum is σ = 20106510336. Its totient is φ = 7461395760.

The previous prime is 13126169957. The next prime is 13126169977. The reversal of 13126169973 is 37996162131.

It is not a de Polignac number, because 13126169973 - 24 = 13126169957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13126169977) 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, 1632261 + ... + 1640282.

It is an arithmetic number, because the mean of its divisors is an integer number (1256656896).

Almost surely, 213126169973 is an apocalyptic number.

It is an amenable number.

13126169973 is a deficient number, since it is larger than the sum of its proper divisors (6980340363).

13126169973 is a wasteful number, since it uses less digits than its factorization.

13126169973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272744.

The product of its digits is 367416, while the sum is 48.

The spelling of 13126169973 in words is "thirteen billion, one hundred twenty-six million, one hundred sixty-nine thousand, nine hundred seventy-three".

Divisors: 1 3 7 21 191 573 1337 4011 3272543 9817629 22907801 68723403 625055713 1875167139 4375389991 13126169973