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407801056 = 2513275407
BaseRepresentation
bin11000010011101…
…000110011100000
31001102100102212211
4120103220303200
51313344113211
6104244331504
713051152235
oct3023506340
91042312784
10407801056
1119a213a73
12b46a3b94
1366643300
143c23578c
1525c04e21
hex184e8ce0

407801056 has 36 divisors (see below), whose sum is σ = 869378832. Its totient is φ = 188213376.

The previous prime is 407801033. The next prime is 407801059. The reversal of 407801056 is 650108704.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407801059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32296 + ... + 43111.

It is an arithmetic number, because the mean of its divisors is an integer number (24149412).

Almost surely, 2407801056 is an apocalyptic number.

It is an amenable number.

407801056 is an abundant number, since it is smaller than the sum of its proper divisors (461577776).

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

407801056 is a wasteful number, since it uses less digits than its factorization.

407801056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75443 (or 75422 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 407801056 is about 20194.0846784399. The cubic root of 407801056 is about 741.5653836247.

The spelling of 407801056 in words is "four hundred seven million, eight hundred one thousand, fifty-six".

Divisors: 1 2 4 8 13 16 26 32 52 104 169 208 338 416 676 1352 2704 5408 75407 150814 301628 603256 980291 1206512 1960582 2413024 3921164 7842328 12743783 15684656 25487566 31369312 50975132 101950264 203900528 407801056