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61545036 = 22373831913
BaseRepresentation
bin1110101011000…
…1101001001100
311021210210220210
43222301221030
5111223420121
610035042420
71345060410
oct352615114
9137723823
1061545036
1131816773
1218740410
13c99b2a7
148260d40
15560a876
hex3ab1a4c

61545036 has 48 divisors (see below), whose sum is σ = 164634624. Its totient is φ = 17529216.

The previous prime is 61545019. The next prime is 61545037. The reversal of 61545036 is 63054516.

61545036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61544994 and 61545012.

It is not an unprimeable number, because it can be changed into a prime (61545037) 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 15 ways as a sum of consecutive naturals, for example, 31216 + ... + 33128.

It is an arithmetic number, because the mean of its divisors is an integer number (3429888).

Almost surely, 261545036 is an apocalyptic number.

It is an amenable number.

61545036 is an abundant number, since it is smaller than the sum of its proper divisors (103089588).

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

61545036 is a wasteful number, since it uses less digits than its factorization.

61545036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310 (or 2308 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 61545036 is about 7845.0644356818. The cubic root of 61545036 is about 394.8186658991.

The spelling of 61545036 in words is "sixty-one million, five hundred forty-five thousand, thirty-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 383 766 1149 1532 1913 2298 2681 3826 4596 5362 5739 7652 8043 10724 11478 13391 16086 22956 26782 32172 40173 53564 80346 160692 732679 1465358 2198037 2930716 4396074 5128753 8792148 10257506 15386259 20515012 30772518 61545036