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12472126745 = 5131631177171
BaseRepresentation
bin10111001110110010…
…11000110100011001
31012012012111200111012
423213121120310121
5201020331023440
65421332543305
7621033220361
oct134731306431
935165450435
1012472126745
115320210471
122500a81b35
131239c0a970
148645d99a1
154cee2ee65
hex2e7658d19

12472126745 has 16 divisors (see below), whose sum is σ = 16216721472. Its totient is φ = 9153673920.

The previous prime is 12472126741. The next prime is 12472126787. The reversal of 12472126745 is 54762127421.

It is not a de Polignac number, because 12472126745 - 22 = 12472126741 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12472126741) 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, 577991 + ... + 599180.

It is an arithmetic number, because the mean of its divisors is an integer number (1013545092).

Almost surely, 212472126745 is an apocalyptic number.

It is an amenable number.

12472126745 is a deficient number, since it is larger than the sum of its proper divisors (3744594727).

12472126745 is a wasteful number, since it uses less digits than its factorization.

12472126745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177352.

The product of its digits is 188160, while the sum is 41.

The spelling of 12472126745 in words is "twelve billion, four hundred seventy-two million, one hundred twenty-six thousand, seven hundred forty-five".

Divisors: 1 5 13 65 163 815 2119 10595 1177171 5885855 15303223 76516115 191878873 959394365 2494425349 12472126745