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307472628 = 22325622719
BaseRepresentation
bin10010010100111…
…010100011110100
3210102120020011010
4102110322203310
51112203111003
650302112220
710422321441
oct2224724364
9712506133
10307472628
11148618811
1286b7b670
134b916188
142cb9a9c8
151bed8003
hex1253a8f4

307472628 has 12 divisors (see below), whose sum is σ = 717436160. Its totient is φ = 102490872.

The previous prime is 307472621. The next prime is 307472629. The reversal of 307472628 is 826274703.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307472621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12811348 + ... + 12811371.

Almost surely, 2307472628 is an apocalyptic number.

It is an amenable number.

307472628 is an abundant number, since it is smaller than the sum of its proper divisors (409963532).

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

307472628 is a wasteful number, since it uses less digits than its factorization.

307472628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25622726 (or 25622724 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 307472628 is about 17534.8974334041. The cubic root of 307472628 is about 674.9456768354.

The spelling of 307472628 in words is "three hundred seven million, four hundred seventy-two thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 25622719 51245438 76868157 102490876 153736314 307472628