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431087980 = 22552341213
BaseRepresentation
bin11001101100011…
…110000101101100
31010001011112112111
4121230132011230
51340324303410
6110435413404
713453121161
oct3154360554
91101145474
10431087980
11201379864
12100454264
136b40785b
1441378068
1527ca4b8a
hex19b1e16c

431087980 has 24 divisors (see below), whose sum is σ = 907037712. Its totient is φ = 172101312.

The previous prime is 431087971. The next prime is 431088013. The reversal of 431087980 is 89780134.

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, 10147 + ... + 31066.

It is an arithmetic number, because the mean of its divisors is an integer number (37793238).

Almost surely, 2431087980 is an apocalyptic number.

It is an amenable number.

431087980 is an abundant number, since it is smaller than the sum of its proper divisors (475949732).

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

431087980 is a wasteful number, since it uses less digits than its factorization.

431087980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41745 (or 41743 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 431087980 is about 20762.6583076445. The cubic root of 431087980 is about 755.4202768024.

The spelling of 431087980 in words is "four hundred thirty-one million, eighty-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 523 1046 2092 2615 5230 10460 41213 82426 164852 206065 412130 824260 21554399 43108798 86217596 107771995 215543990 431087980