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12103473657 = 311735024273
BaseRepresentation
bin10110100010110110…
…00101100111111001
31011020111211011112010
423101123011213321
5144241442124112
65321003240133
7605635554132
oct132133054771
934214734463
1012103473657
1151511059a0
122419519049
1311ab723442
1482b674c89
154ac8ae63c
hex2d16c59f9

12103473657 has 16 divisors (see below), whose sum is σ = 17846221248. Its totient is φ = 7234951680.

The previous prime is 12103473653. The next prime is 12103473671. The reversal of 12103473657 is 75637430121.

It is not a de Polignac number, because 12103473657 - 22 = 12103473653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12103473653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2509728 + ... + 2514545.

It is an arithmetic number, because the mean of its divisors is an integer number (1115388828).

Almost surely, 212103473657 is an apocalyptic number.

It is an amenable number.

12103473657 is a deficient number, since it is larger than the sum of its proper divisors (5742747591).

12103473657 is a wasteful number, since it uses less digits than its factorization.

12103473657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024360.

The product of its (nonzero) digits is 105840, while the sum is 39.

The spelling of 12103473657 in words is "twelve billion, one hundred three million, four hundred seventy-three thousand, six hundred fifty-seven".

Divisors: 1 3 11 33 73 219 803 2409 5024273 15072819 55267003 165801009 366771929 1100315787 4034491219 12103473657