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53870367188687 = 7231120672985701
BaseRepresentation
bin11000011111110101011000…
…00110011010011011001111
321001201221211111211211122012
430033322230012122123033
524030103003000014222
6310323412142211435
714230001626623650
oct1417725406323317
9231657744754565
1053870367188687
111618a326975955
126060530b83b7b
132409c5273a9aa
14d434a8141527
1563645a1381e2
hex30feac19a6cf

53870367188687 has 16 divisors (see below), whose sum is σ = 64243517133312. Its totient is φ = 44166600218400.

The previous prime is 53870367188683. The next prime is 53870367188689. The reversal of 53870367188687 is 78688176307835.

It is a cyclic number.

It is not a de Polignac number, because 53870367188687 - 22 = 53870367188683 is a prime.

It is a super-2 number, since 2×538703671886872 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53870367188681) 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, 16549937 + ... + 19535637.

It is an arithmetic number, because the mean of its divisors is an integer number (4015219820832).

Almost surely, 253870367188687 is an apocalyptic number.

53870367188687 is a deficient number, since it is larger than the sum of its proper divisors (10373149944625).

53870367188687 is a wasteful number, since it uses less digits than its factorization.

53870367188687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097798.

The product of its (nonzero) digits is 2275983360, while the sum is 77.

The spelling of 53870367188687 in words is "fifty-three trillion, eight hundred seventy billion, three hundred sixty-seven million, one hundred eighty-eight thousand, six hundred eighty-seven".

Divisors: 1 7 23 161 112067 784469 2577541 2985701 18042787 20899907 68671123 480697861 334598553967 2342189877769 7695766741241 53870367188687