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56030940 = 22385761
BaseRepresentation
bin1101010110111…
…1011011011100
310220102200000000
43111233123130
5103320442230
65320534300
71250153340
oct325573334
9126380000
1056030940
112969a969
1216921390
13b7ba504
147627620
154dbbb60
hex356f6dc

56030940 has 216 divisors, whose sum is σ = 205007712. Its totient is φ = 12597120.

The previous prime is 56030939. The next prime is 56030957. The reversal of 56030940 is 4903065.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 71 ways as a sum of consecutive naturals, for example, 918510 + ... + 918570.

Almost surely, 256030940 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 56030940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102503856).

56030940 is an abundant number, since it is smaller than the sum of its proper divisors (148976772).

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

56030940 is an equidigital number, since it uses as much as digits as its factorization.

56030940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 56030940 is about 7485.3817537919. The cubic root of 56030940 is about 382.6566832140.

The spelling of 56030940 in words is "fifty-six million, thirty thousand, nine hundred forty".