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407328380 = 225139146521
BaseRepresentation
bin11000010001110…
…101011001111100
31001101110102111022
4120101311121330
51313234002010
6104230243312
713044143204
oct3021653174
91041412438
10407328380
11199a20928
12b44b6538
1366509114
143c151404
1525b5ed55
hex1847567c

407328380 has 24 divisors (see below), whose sum is σ = 861549360. Its totient is φ = 161758080.

The previous prime is 407328371. The next prime is 407328391. The reversal of 407328380 is 83823704.

It is a self number, because there is not a number n which added to its sum of digits gives 407328380.

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, 70481 + ... + 76040.

It is an arithmetic number, because the mean of its divisors is an integer number (35897890).

Almost surely, 2407328380 is an apocalyptic number.

It is an amenable number.

407328380 is an abundant number, since it is smaller than the sum of its proper divisors (454220980).

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

407328380 is a wasteful number, since it uses less digits than its factorization.

407328380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146669 (or 146667 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 407328380 is about 20182.3779570198. The cubic root of 407328380 is about 741.2787604712.

The spelling of 407328380 in words is "four hundred seven million, three hundred twenty-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 146521 293042 586084 732605 1465210 2930420 20366419 40732838 81465676 101832095 203664190 407328380