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12172307177653 = 72475285413451
BaseRepresentation
bin1011000100100001011000…
…0010111010000010110101
31121002122212000102122122221
42301020112002322002311
53043412341114141103
641515514122522341
72364264055605100
oct261102602720265
947078760378587
1012172307177653
113973279085767
1214470a90663b1
136a3ac7632b3c
143011ddc31737
1516196a0a91bd
hexb12160ba0b5

12172307177653 has 12 divisors (see below), whose sum is σ = 14460891204672. Its totient is φ = 10211418785400.

The previous prime is 12172307177599. The next prime is 12172307177671. The reversal of 12172307177653 is 35677170327121.

It is not a de Polignac number, because 12172307177653 - 221 = 12172305080501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12172307177653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12172307177683) 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, 2642704423 + ... + 2642709028.

It is an arithmetic number, because the mean of its divisors is an integer number (1205074267056).

Almost surely, 212172307177653 is an apocalyptic number.

It is an amenable number.

12172307177653 is a deficient number, since it is larger than the sum of its proper divisors (2288584027019).

12172307177653 is an equidigital number, since it uses as much as digits as its factorization.

12172307177653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285413512 (or 5285413505 counting only the distinct ones).

The product of its (nonzero) digits is 2593080, while the sum is 52.

The spelling of 12172307177653 in words is "twelve trillion, one hundred seventy-two billion, three hundred seven million, one hundred seventy-seven thousand, six hundred fifty-three".

Divisors: 1 7 47 49 329 2303 5285413451 36997894157 248414432197 258985259099 1738901025379 12172307177653