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56207406 = 23171274339
BaseRepresentation
bin1101011001101…
…0100000101110
310220202122001210
43112122200232
5103342114111
65324415250
71251516663
oct326324056
9126678053
1056207406
1129800502
12169a7526
13b84c928
147671a6a
154e040a6
hex359a82e

56207406 has 32 divisors (see below), whose sum is σ = 119992320. Its totient is φ = 17490816.

The previous prime is 56207399. The next prime is 56207429. The reversal of 56207406 is 60470265.

56207406 = T2563 + T2564 + ... + T2579.

56207406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10785 + ... + 15123.

It is an arithmetic number, because the mean of its divisors is an integer number (3749760).

Almost surely, 256207406 is an apocalyptic number.

56207406 is an abundant number, since it is smaller than the sum of its proper divisors (63784914).

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

56207406 is a wasteful number, since it uses less digits than its factorization.

56207406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 56207406 is about 7497.1598622412. The cubic root of 56207406 is about 383.0579801194.

The spelling of 56207406 in words is "fifty-six million, two hundred seven thousand, four hundred six".

Divisors: 1 2 3 6 17 34 51 102 127 254 381 762 2159 4318 4339 6477 8678 12954 13017 26034 73763 147526 221289 442578 551053 1102106 1653159 3306318 9367901 18735802 28103703 56207406