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61304752 = 242327243
BaseRepresentation
bin1110100111011…
…0111110110000
311021100121022101
43221312332300
5111143223002
610025550144
71343040025
oct351667660
9137317271
1061304752
1131672193
1218645354
13c915b02
1481db54c
1555ae587
hex3a76fb0

61304752 has 30 divisors (see below), whose sum is σ = 124183892. Its totient is φ = 29315616.

The previous prime is 61304741. The next prime is 61304759. The reversal of 61304752 is 25740316.

It is a self number, because there is not a number n which added to its sum of digits gives 61304752.

It is not an unprimeable number, because it can be changed into a prime (61304759) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4843 + ... + 12085.

Almost surely, 261304752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61304752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62091946).

61304752 is an abundant number, since it is smaller than the sum of its proper divisors (62879140).

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

61304752 is a wasteful number, since it uses less digits than its factorization.

61304752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297 (or 7268 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 61304752 is about 7829.7351168478. The cubic root of 61304752 is about 394.3041790294.

The spelling of 61304752 in words is "sixty-one million, three hundred four thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 23 46 92 184 368 529 1058 2116 4232 7243 8464 14486 28972 57944 115888 166589 333178 666356 1332712 2665424 3831547 7663094 15326188 30652376 61304752