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56143070 = 2527120717
BaseRepresentation
bin1101011000101…
…0110011011110
310220122100210222
43112022303132
5103333034240
65323201342
71251131264
oct326126336
9126570728
1056143070
1129767135
1216976252
13b829569
147656434
154ddeeb5
hex358acde

56143070 has 16 divisors (see below), whose sum is σ = 101435328. Its totient is φ = 22373280.

The previous prime is 56143039. The next prime is 56143093. The reversal of 56143070 is 7034165.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7649 + ... + 13068.

It is an arithmetic number, because the mean of its divisors is an integer number (6339708).

Almost surely, 256143070 is an apocalyptic number.

56143070 is a deficient number, since it is larger than the sum of its proper divisors (45292258).

56143070 is a wasteful number, since it uses less digits than its factorization.

56143070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20995.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 56143070 is about 7492.8679422502. The cubic root of 56143070 is about 382.9117726546.

The spelling of 56143070 in words is "fifty-six million, one hundred forty-three thousand, seventy".

Divisors: 1 2 5 10 271 542 1355 2710 20717 41434 103585 207170 5614307 11228614 28071535 56143070