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53697077744 = 2417197415727
BaseRepresentation
bin110010000000100110…
…000110000111110000
312010121020112011212012
4302000212012013300
51334432422441434
640400150422052
73610443426032
oct620046060760
9163536464765
1053697077744
1120855667302
12a4a7061928
1350a99ac4ab
14285574dc52
1515e42303ce
hexc809861f0

53697077744 has 20 divisors (see below), whose sum is σ = 110157976224. Its totient is φ = 25269212928.

The previous prime is 53697077741. The next prime is 53697077779. The reversal of 53697077744 is 44777079635.

It is a happy number.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53697077741) 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, 98707592 + ... + 98708135.

Almost surely, 253697077744 is an apocalyptic number.

It is an amenable number.

53697077744 is an abundant number, since it is smaller than the sum of its proper divisors (56460898480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53697077744 is a wasteful number, since it uses less digits than its factorization.

53697077744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197415752 (or 197415746 counting only the distinct ones).

The product of its (nonzero) digits is 31116960, while the sum is 59.

The spelling of 53697077744 in words is "fifty-three billion, six hundred ninety-seven million, seventy-seven thousand, seven hundred forty-four".

Divisors: 1 2 4 8 16 17 34 68 136 272 197415727 394831454 789662908 1579325816 3158651632 3356067359 6712134718 13424269436 26848538872 53697077744