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13125422232251 = 72391378922443
BaseRepresentation
bin1011111100000000000000…
…1000010011001010111011
31201110210000020120002002122
42333000000020103022323
53210021331042413001
643525422530151455
72523165125110160
oct277000010231273
951423006502078
1013125422232251
11420050774219a
12157b96542258b
13742950328124
143353b9540067
1517b650699b1b
hexbf0002132bb

13125422232251 has 16 divisors (see below), whose sum is σ = 15654392308224. Its totient is φ = 10760036774784.

The previous prime is 13125422232157. The next prime is 13125422232253. The reversal of 13125422232251 is 15223222452131.

It is a cyclic number.

It is not a de Polignac number, because 13125422232251 - 230 = 13124348490427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13125422232253) 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, 2990165 + ... + 5932278.

It is an arithmetic number, because the mean of its divisors is an integer number (978399519264).

Almost surely, 213125422232251 is an apocalyptic number.

13125422232251 is a deficient number, since it is larger than the sum of its proper divisors (2528970075973).

13125422232251 is an equidigital number, since it uses as much as digits as its factorization.

13125422232251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8931610.

The product of its digits is 57600, while the sum is 35.

Adding to 13125422232251 its reverse (15223222452131), we get a palindrome (28348644684382).

The spelling of 13125422232251 in words is "thirteen trillion, one hundred twenty-five billion, four hundred twenty-two million, two hundred thirty-two thousand, two hundred fifty-one".

Divisors: 1 7 23 161 9137 63959 210151 1471057 8922443 62457101 205216189 1436513323 81524361691 570670531837 1875060318893 13125422232251