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53290797172 = 2276491741757
BaseRepresentation
bin110001101000011000…
…010000100001110100
312002112221000222200121
4301220120100201310
51333114421002142
640251554421324
73564411205414
oct615030204164
9162487028617
1053290797172
11206672a1738
12a3b2b91844
13504377c2a2
1428177d2644
1515bd72ac67
hexc68610874

53290797172 has 12 divisors (see below), whose sum is σ = 93271140900. Its totient is φ = 26641899776.

The previous prime is 53290797139. The next prime is 53290797173. The reversal of 53290797172 is 27179709235.

It can be written as a sum of positive squares in 2 ways, for example, as 21151630096 + 32139167076 = 145436^2 + 179274^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53290797173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840283 + ... + 901474.

It is an arithmetic number, because the mean of its divisors is an integer number (7772595075).

Almost surely, 253290797172 is an apocalyptic number.

It is an amenable number.

53290797172 is a deficient number, since it is larger than the sum of its proper divisors (39980343728).

53290797172 is a wasteful number, since it uses less digits than its factorization.

53290797172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749410 (or 1749408 counting only the distinct ones).

The product of its (nonzero) digits is 1666980, while the sum is 52.

The spelling of 53290797172 in words is "fifty-three billion, two hundred ninety million, seven hundred ninety-seven thousand, one hundred seventy-two".

Divisors: 1 2 4 7649 15298 30596 1741757 3483514 6967028 13322699293 26645398586 53290797172