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56424270 = 23571391933
BaseRepresentation
bin1101011100111…
…1011101001110
310221011122112210
43113033131032
5103421034040
65333211250
71253412150
oct327173516
9127148483
1056424270
1129939431
1216a90b26
13b8c7556
1476caad0
154e48480
hex35cf74e

56424270 has 64 divisors (see below), whose sum is σ = 155957760. Its totient is φ = 12797568.

The previous prime is 56424233. The next prime is 56424287. The reversal of 56424270 is 7242465.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 28224 + ... + 30156.

It is an arithmetic number, because the mean of its divisors is an integer number (2436840).

Almost surely, 256424270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56424270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77978880).

56424270 is an abundant number, since it is smaller than the sum of its proper divisors (99533490).

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

56424270 is a wasteful number, since it uses less digits than its factorization.

56424270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 56424270 is about 7511.6090153841. The cubic root of 56424270 is about 383.5499963998.

The spelling of 56424270 in words is "fifty-six million, four hundred twenty-four thousand, two hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 139 210 278 417 695 834 973 1390 1933 1946 2085 2919 3866 4170 4865 5799 5838 9665 9730 11598 13531 14595 19330 27062 28995 29190 40593 57990 67655 81186 135310 202965 268687 405930 537374 806061 1343435 1612122 1880809 2686870 3761618 4030305 5642427 8060610 9404045 11284854 18808090 28212135 56424270