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13125440431002 = 238212664523027
BaseRepresentation
bin1011111100000000000100…
…1101101110001110011010
31201110210001111210200002110
42333000001031232032122
53210021400222243002
643525424420213150
72523165435564564
oct277000115561632
951423044720073
1013125440431002
114200516a42189
12157b96b53a1b6
1374295402a713
143353bbb1a334
1517b652091e6c
hexbf00136e39a

13125440431002 has 16 divisors (see below), whose sum is σ = 26282855148192. Its totient is φ = 4369817762640.

The previous prime is 13125440430983. The next prime is 13125440431043. The reversal of 13125440431002 is 20013404452131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332256588 + ... + 1332266439.

It is an arithmetic number, because the mean of its divisors is an integer number (1642678446762).

Almost surely, 213125440431002 is an apocalyptic number.

13125440431002 is an abundant number, since it is smaller than the sum of its proper divisors (13157414717190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13125440431002 is a wasteful number, since it uses less digits than its factorization.

13125440431002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664523853.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 13125440431002 its reverse (20013404452131), we get a palindrome (33138844883133).

The spelling of 13125440431002 in words is "thirteen trillion, one hundred twenty-five billion, four hundred forty million, four hundred thirty-one thousand, two".

Divisors: 1 2 3 6 821 1642 2463 4926 2664523027 5329046054 7993569081 15987138162 2187573405167 4375146810334 6562720215501 13125440431002