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61365141 = 3312791777
BaseRepresentation
bin1110101000010…
…1101110010101
311021110200011000
43222011232111
5111202141031
610031133513
71343411055
oct352055625
9137420130
1061365141
11317035a2
1218674299
13c937446
148215565
1555c23e6
hex3a85b95

61365141 has 16 divisors (see below), whose sum is σ = 91033600. Its totient is φ = 40855104.

The previous prime is 61365119. The next prime is 61365181. The reversal of 61365141 is 14156316.

61365141 is a `hidden beast` number, since 6 + 1 + 3 + 651 + 4 + 1 = 666.

It is not a de Polignac number, because 61365141 - 210 = 61364117 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61365181) 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, 33645 + ... + 35421.

It is an arithmetic number, because the mean of its divisors is an integer number (5689600).

Almost surely, 261365141 is an apocalyptic number.

It is an amenable number.

61365141 is a deficient number, since it is larger than the sum of its proper divisors (29668459).

61365141 is a wasteful number, since it uses less digits than its factorization.

61365141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065 (or 3059 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 61365141 is about 7833.5905560605. The cubic root of 61365141 is about 394.4336079341.

The spelling of 61365141 in words is "sixty-one million, three hundred sixty-five thousand, one hundred forty-one".

Divisors: 1 3 9 27 1279 1777 3837 5331 11511 15993 34533 47979 2272783 6818349 20455047 61365141