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61356960 = 2533572029
BaseRepresentation
bin1110101000001…
…1101110100000
311021110020221000
43222003232200
5111201410320
610031032000
71343345160
oct352035640
9137406830
1061356960
11316a8435
121866b600
13c9337c2
1482125a0
1555bec90
hex3a83ba0

61356960 has 192 divisors, whose sum is σ = 245548800. Its totient is φ = 14017536.

The previous prime is 61356959. The next prime is 61357007. The reversal of 61356960 is 6965316.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29226 + ... + 31254.

It is an arithmetic number, because the mean of its divisors is an integer number (1278900).

Almost surely, 261356960 is an apocalyptic number.

61356960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61356960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122774400).

61356960 is an abundant number, since it is smaller than the sum of its proper divisors (184191840).

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

61356960 is a wasteful number, since it uses less digits than its factorization.

61356960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060 (or 2046 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 61356960 is about 7833.0683643129. The cubic root of 61356960 is about 394.4160789553.

The spelling of 61356960 in words is "sixty-one million, three hundred fifty-six thousand, nine hundred sixty".