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13023501501 = 326931612019
BaseRepresentation
bin11000010000100001…
…01101110010111101
31020121122000102110110
430020100231302331
5203133004022001
65552150500233
7640506636063
oct141020556275
936548012413
1013023501501
11558347748a
122635664679
1312c720cb0a
148b7926033
155135453d6
hex30842dcbd

13023501501 has 8 divisors (see below), whose sum is σ = 17371127520. Its totient is φ = 8679104912.

The previous prime is 13023501497. The next prime is 13023501509. The reversal of 13023501501 is 10510532031.

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 13023501501 - 22 = 13023501497 is a prime.

It is a super-2 number, since 2×130235015012 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13023501509) 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, 797931 + ... + 814088.

It is an arithmetic number, because the mean of its divisors is an integer number (2171390940).

Almost surely, 213023501501 is an apocalyptic number.

It is an amenable number.

13023501501 is a deficient number, since it is larger than the sum of its proper divisors (4347626019).

13023501501 is a wasteful number, since it uses less digits than its factorization.

13023501501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614715.

The product of its (nonzero) digits is 450, while the sum is 21.

The spelling of 13023501501 in words is "thirteen billion, twenty-three million, five hundred one thousand, five hundred one".

Divisors: 1 3 2693 8079 1612019 4836057 4341167167 13023501501