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12206603057 = 112902911173
BaseRepresentation
bin10110101111001000…
…11111101100110001
31011111200212200110112
423113210133230301
5144444342244212
65335125511105
7611330262005
oct132744375461
934450780415
1012206603057
1151a4344600
122447b72495
1311c6bc145c
1483b23c705
154b6981422
hex2d791fb31

12206603057 has 12 divisors (see below), whose sum is σ = 13419862260. Its totient is φ = 11094689760.

The previous prime is 12206603051. The next prime is 12206603083. The reversal of 12206603057 is 75030660221.

It can be written as a sum of positive squares in 2 ways, for example, as 10088394481 + 2118208576 = 100441^2 + 46024^2 .

It is not a de Polignac number, because 12206603057 - 210 = 12206602033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12206603051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1086923 + ... + 1098095.

It is an arithmetic number, because the mean of its divisors is an integer number (1118321855).

Almost surely, 212206603057 is an apocalyptic number.

It is an amenable number.

12206603057 is a deficient number, since it is larger than the sum of its proper divisors (1213259203).

12206603057 is a wasteful number, since it uses less digits than its factorization.

12206603057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20224 (or 20213 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 12206603057 in words is "twelve billion, two hundred six million, six hundred three thousand, fifty-seven".

Divisors: 1 11 121 9029 11173 99319 122903 1092509 1351933 100881017 1109691187 12206603057