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61392044 = 2272192573
BaseRepresentation
bin1110101000110…
…0010010101100
311021112001001102
43222030102230
5111204021134
610031502232
71343552360
oct352142254
9137461042
1061392044
113172182a
1218687978
13c94676c
1482212a0
1555ca37e
hex3a8c4ac

61392044 has 12 divisors (see below), whose sum is σ = 122784144. Its totient is φ = 26310864.

The previous prime is 61392041. The next prime is 61392061. The reversal of 61392044 is 44029316.

61392044 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 61391998 and 61392016.

It is not an unprimeable number, because it can be changed into a prime (61392041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096259 + ... + 1096314.

It is an arithmetic number, because the mean of its divisors is an integer number (10232012).

Almost surely, 261392044 is an apocalyptic number.

It is an amenable number.

61392044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61392044 is a wasteful number, since it uses less digits than its factorization.

61392044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192584 (or 2192582 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 61392044 is about 7835.3075242775. The cubic root of 61392044 is about 394.4912405294.

The spelling of 61392044 in words is "sixty-one million, three hundred ninety-two thousand, forty-four".

Divisors: 1 2 4 7 14 28 2192573 4385146 8770292 15348011 30696022 61392044