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61045692 = 2235087141
BaseRepresentation
bin1110100011011…
…1101110111100
311020212102221120
43220313232330
5111111430232
610020230540
71340610531
oct350675674
9136772846
1061045692
1131505594
121853b450
13c854c16
148170d88
15555c92c
hex3a37bbc

61045692 has 12 divisors (see below), whose sum is σ = 142439976. Its totient is φ = 20348560.

The previous prime is 61045687. The next prime is 61045741. The reversal of 61045692 is 29654016.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2543559 + ... + 2543582.

It is an arithmetic number, because the mean of its divisors is an integer number (11869998).

Almost surely, 261045692 is an apocalyptic number.

It is an amenable number.

61045692 is an abundant number, since it is smaller than the sum of its proper divisors (81394284).

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

61045692 is a wasteful number, since it uses less digits than its factorization.

61045692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5087148 (or 5087146 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 61045692 is about 7813.1742589040. The cubic root of 61045692 is about 393.7479814459.

Adding to 61045692 its sum of digits (33), we get a triangular number (61045725 = T11049).

The spelling of 61045692 in words is "sixty-one million, forty-five thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 5087141 10174282 15261423 20348564 30522846 61045692