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61199114875 = 536722732191
BaseRepresentation
bin111000111111110000…
…000110001001111011
312211222001221011010021
4320333300012021323
52000313433134000
644040421231311
74264366615303
oct707760061173
9184861834107
1061199114875
1123a55339898
12ba3b562537
135a04001812
142d67c32603
1518d2b6611a
hexe3fc0627b

61199114875 has 32 divisors (see below), whose sum is σ = 77860343808. Its totient is φ = 48014604000.

The previous prime is 61199114849. The next prime is 61199114891. The reversal of 61199114875 is 57841199116.

It is a happy number.

It is not a de Polignac number, because 61199114875 - 25 = 61199114843 is a prime.

It is a super-2 number, since 2×611991148752 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1885030 + ... + 1917220.

It is an arithmetic number, because the mean of its divisors is an integer number (2433135744).

Almost surely, 261199114875 is an apocalyptic number.

61199114875 is a deficient number, since it is larger than the sum of its proper divisors (16661228933).

61199114875 is a wasteful number, since it uses less digits than its factorization.

61199114875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32500 (or 32490 counting only the distinct ones).

The product of its digits is 544320, while the sum is 52.

The spelling of 61199114875 in words is "sixty-one billion, one hundred ninety-nine million, one hundred fourteen thousand, eight hundred seventy-five".

Divisors: 1 5 25 67 125 227 335 1135 1675 5675 8375 15209 28375 32191 76045 160955 380225 804775 1901125 2156797 4023875 7307357 10783985 36536785 53919925 182683925 269599625 489592919 913419625 2447964595 12239822975 61199114875