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56001278 = 229699431
BaseRepresentation
bin1101010110100…
…0001011111110
310220101011022102
43111220023332
5103314020103
65320145102
71250001014
oct325501376
9126334272
1056001278
112967a653
1216908192
13b7a9b68
14761a8b4
154db2e88
hex35682fe

56001278 has 8 divisors (see below), whose sum is σ = 84039120. Its totient is φ = 27988240.

The previous prime is 56001269. The next prime is 56001287. The reversal of 56001278 is 87210065.

It is an interprime number because it is at equal distance from previous prime (56001269) and next prime (56001287).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×560012782 = 6272286275266568, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56001278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223 + ... + 10653.

It is an arithmetic number, because the mean of its divisors is an integer number (10504890).

Almost surely, 256001278 is an apocalyptic number.

56001278 is a deficient number, since it is larger than the sum of its proper divisors (28037842).

56001278 is a wasteful number, since it uses less digits than its factorization.

56001278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12402.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 56001278 is about 7483.4001630275. The cubic root of 56001278 is about 382.5891469205.

The spelling of 56001278 in words is "fifty-six million, one thousand, two hundred seventy-eight".

Divisors: 1 2 2969 5938 9431 18862 28000639 56001278