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407090988 = 22333769361
BaseRepresentation
bin11000010000111…
…011011100101100
31001101000100212000
4120100323130230
51313203402423
6104221212300
713042134123
oct3020733454
91041010760
10407090988
11199879537
12b4401090
1366455055
143c0ccaba
1525b14843
hex1843b72c

407090988 has 24 divisors (see below), whose sum is σ = 1055421360. Its totient is φ = 135696960.

The previous prime is 407090963. The next prime is 407091001. The reversal of 407090988 is 889090704.

It is a super-2 number, since 2×4070909882 = 331446145021632288, which contains 22 as substring.

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, 1884573 + ... + 1884788.

It is an arithmetic number, because the mean of its divisors is an integer number (43975890).

Almost surely, 2407090988 is an apocalyptic number.

It is an amenable number.

407090988 is an abundant number, since it is smaller than the sum of its proper divisors (648330372).

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

407090988 is a wasteful number, since it uses less digits than its factorization.

407090988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769374 (or 3769366 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 407090988 is about 20176.4959296702. The cubic root of 407090988 is about 741.1347261136.

The spelling of 407090988 in words is "four hundred seven million, ninety thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 3769361 7538722 11308083 15077444 22616166 33924249 45232332 67848498 101772747 135696996 203545494 407090988