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12701437 = 72259213
BaseRepresentation
bin110000011100…
…111011111101
3212220022002121
4300130323331
511222421222
61132122541
7212650300
oct60347375
925808077
1012701437
117195861
124306451
132829358
141988b37
1511ad5c7
hexc1cefd

12701437 has 6 divisors (see below), whose sum is σ = 14775198. Its totient is φ = 10886904.

The previous prime is 12701387. The next prime is 12701441. The reversal of 12701437 is 73410721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11148921 + 1552516 = 3339^2 + 1246^2 .

It is not a de Polignac number, because 12701437 - 211 = 12699389 is a prime.

It is a super-2 number, since 2×127014372 = 322653003729938, which 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 (12701477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129558 + ... + 129655.

It is an arithmetic number, because the mean of its divisors is an integer number (2462533).

Almost surely, 212701437 is an apocalyptic number.

It is an amenable number.

12701437 is a deficient number, since it is larger than the sum of its proper divisors (2073761).

12701437 is an equidigital number, since it uses as much as digits as its factorization.

12701437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259227 (or 259220 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 12701437 is about 3563.9075465000. The cubic root of 12701437 is about 233.3194547301.

The spelling of 12701437 in words is "twelve million, seven hundred one thousand, four hundred thirty-seven".

Divisors: 1 7 49 259213 1814491 12701437