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61047385860 = 22351733587107
BaseRepresentation
bin111000110110101101…
…010010111100000100
312211120111102112001010
4320312231102330010
52000011112321420
644013401202220
74260545134536
oct706655227404
9184514375033
1061047385860
112398772660a
12b9b8790370
1359ab748936
142d51a17856
1518c46944e0
hexe36b52f04

61047385860 has 48 divisors (see below), whose sum is σ = 171031605696. Its totient is φ = 16269881472.

The previous prime is 61047385853. The next prime is 61047385873. The reversal of 61047385860 is 6858374016.

61047385860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189574 + ... + 397533.

It is an arithmetic number, because the mean of its divisors is an integer number (3563158452).

Almost surely, 261047385860 is an apocalyptic number.

61047385860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61047385860 is an abundant number, since it is smaller than the sum of its proper divisors (109984219836).

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

61047385860 is a wasteful number, since it uses less digits than its factorization.

61047385860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588852 (or 588850 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 61047385860 in words is "sixty-one billion, forty-seven million, three hundred eighty-five thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1733 3466 5199 6932 8665 10398 17330 20796 25995 34660 51990 103980 587107 1174214 1761321 2348428 2935535 3522642 5871070 7045284 8806605 11742140 17613210 35226420 1017456431 2034912862 3052369293 4069825724 5087282155 6104738586 10174564310 12209477172 15261846465 20349128620 30523692930 61047385860