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30817820404 = 2271100636443
BaseRepresentation
bin11100101100111000…
…101001111011110100
32221112202011111001201
4130230320221323310
51001103330223104
622054004502244
72140460102620
oct345470517364
987482144051
1030817820404
1112084946668
125b809aa984
132ba19472b7
1416c4cd2180
15c058210a4
hex72ce29ef4

30817820404 has 12 divisors (see below), whose sum is σ = 61635640864. Its totient is φ = 13207637304.

The previous prime is 30817820353. The next prime is 30817820441. The reversal of 30817820404 is 40402871803.

30817820404 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550318194 + ... + 550318249.

Almost surely, 230817820404 is an apocalyptic number.

It is an amenable number.

30817820404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30817820404 is a wasteful number, since it uses less digits than its factorization.

30817820404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100636454 (or 1100636452 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 30817820404 in words is "thirty billion, eight hundred seventeen million, eight hundred twenty thousand, four hundred four".

Divisors: 1 2 4 7 14 28 1100636443 2201272886 4402545772 7704455101 15408910202 30817820404