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61330009032 = 23331867152081
BaseRepresentation
bin111001000111100011…
…011010101111001000
312212022012020021011000
4321013203122233020
52001100440242112
644101414535000
74300546322025
oct710743325710
9185265207130
1061330009032
1124012211586
12ba77367460
135a25171296
142d7b38654c
1518de3be7dc
hexe478dabc8

61330009032 has 64 divisors (see below), whose sum is σ = 170453505600. Its totient is φ = 20432252160.

The previous prime is 61330009031. The next prime is 61330009057. The reversal of 61330009032 is 23090003316.

It is a super-2 number, since 2×613300090322 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 61330008987 and 61330009005.

It is not an unprimeable number, because it can be changed into a prime (61330009031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327232 + ... + 479312.

It is an arithmetic number, because the mean of its divisors is an integer number (2663336025).

Almost surely, 261330009032 is an apocalyptic number.

It is an amenable number.

61330009032 is an abundant number, since it is smaller than the sum of its proper divisors (109123496568).

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

61330009032 is a wasteful number, since it uses less digits than its factorization.

61330009032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153963 (or 153953 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The spelling of 61330009032 in words is "sixty-one billion, three hundred thirty million, nine thousand, thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 1867 3734 5601 7468 11202 14936 16803 22404 33606 44808 50409 67212 100818 134424 152081 201636 304162 403272 456243 608324 912486 1216648 1368729 1824972 2737458 3649944 4106187 5474916 8212374 10949832 16424748 32849496 283935227 567870454 851805681 1135740908 1703611362 2271481816 2555417043 3407222724 5110834086 6814445448 7666251129 10221668172 15332502258 20443336344 30665004516 61330009032