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407612380 = 22572415931
BaseRepresentation
bin11000010010111…
…010101111011100
31001101222212001211
4120102322233130
51313322044010
6104240314204
713046435200
oct3022725734
91041885054
10407612380
1119a0a523a
12b4612964
13665a8476
143c1c6b00
1525bb908a
hex184babdc

407612380 has 36 divisors (see below), whose sum is σ = 995741208. Its totient is φ = 139752480.

The previous prime is 407612329. The next prime is 407612423. The reversal of 407612380 is 83216704.

It is a super-2 number, since 2×4076123802 = 332295704658528800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206986 + ... + 208945.

It is an arithmetic number, because the mean of its divisors is an integer number (27659478).

Almost surely, 2407612380 is an apocalyptic number.

It is an amenable number.

407612380 is an abundant number, since it is smaller than the sum of its proper divisors (588128828).

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

407612380 is a wasteful number, since it uses less digits than its factorization.

407612380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415954 (or 415945 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 407612380 is about 20189.4125719398. The cubic root of 407612380 is about 741.4510000939.

The spelling of 407612380 in words is "four hundred seven million, six hundred twelve thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 415931 831862 1663724 2079655 2911517 4159310 5823034 8318620 11646068 14557585 20380619 29115170 40761238 58230340 81522476 101903095 203806190 407612380