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12698292397 = 711323368899
BaseRepresentation
bin10111101001110000…
…01001000010101101
31012202222002002102211
423310320021002231
5202001230324042
65500012250421
7626450463430
oct136470110255
935688062384
1012698292397
11542694502a
122564770a11
131274a268ab
1488666d817
154e4c07017
hex2f4e090ad

12698292397 has 16 divisors (see below), whose sum is σ = 14703811200. Its totient is φ = 10741473792.

The previous prime is 12698292391. The next prime is 12698292449. The reversal of 12698292397 is 79329289621.

It is a de Polignac number, because none of the positive numbers 2k-12698292397 is a prime.

It is a super-2 number, since 2×126982923972 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12698292391) 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, 149854 + ... + 218752.

It is an arithmetic number, because the mean of its divisors is an integer number (918988200).

Almost surely, 212698292397 is an apocalyptic number.

It is an amenable number.

12698292397 is a deficient number, since it is larger than the sum of its proper divisors (2005518803).

12698292397 is a wasteful number, since it uses less digits than its factorization.

12698292397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69252.

The product of its digits is 5878656, while the sum is 58.

The spelling of 12698292397 in words is "twelve billion, six hundred ninety-eight million, two hundred ninety-two thousand, three hundred ninety-seven".

Divisors: 1 7 113 233 791 1631 26329 68899 184303 482293 7785587 16053467 54499109 112374269 1814041771 12698292397