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51068160 = 28325111331
BaseRepresentation
bin1100001011001…
…1110100000000
310120002112100100
43002303310000
5101033140120
65022322400
71160033523
oct302636400
9116075310
1051068160
11269102a0
1215129400
13a770660
146ad4bba
15473b490
hex30b3d00

51068160 has 432 divisors, whose sum is σ = 214276608. Its totient is φ = 11059200.

The previous prime is 51068131. The next prime is 51068167. The reversal of 51068160 is 6186015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51068167) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1647345 + ... + 1647375.

Almost surely, 251068160 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 51068160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107138304).

51068160 is an abundant number, since it is smaller than the sum of its proper divisors (163208448).

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

51068160 is a wasteful number, since it uses less digits than its factorization.

51068160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 51068160 is about 7146.1989896728. The cubic root of 51068160 is about 371.0081102937.

The spelling of 51068160 in words is "fifty-one million, sixty-eight thousand, one hundred sixty".