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30472036 = 2274325309
BaseRepresentation
bin111010000111…
…1011101100100
32010100010202221
41310033131210
530300101121
63005042124
7520002520
oct164173544
963303687
1030472036
1116223101
12a256344
13640baba
144092d80
152a1db41
hex1d0f764

30472036 has 24 divisors (see below), whose sum is σ = 62363840. Its totient is φ = 12755232.

The previous prime is 30472031. The next prime is 30472063. The reversal of 30472036 is 63027403.

30472036 = T291 + T292 + ... + T591.

It is a self number, because there is not a number n which added to its sum of digits gives 30472036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30472031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11451 + ... + 13858.

Almost surely, 230472036 is an apocalyptic number.

It is an amenable number.

30472036 is an abundant number, since it is smaller than the sum of its proper divisors (31891804).

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

30472036 is a wasteful number, since it uses less digits than its factorization.

30472036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25363 (or 25361 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 30472036 is about 5520.1481864167. The cubic root of 30472036 is about 312.3444721550.

Adding to 30472036 its reverse (63027403), we get a palindrome (93499439).

The spelling of 30472036 in words is "thirty million, four hundred seventy-two thousand, thirty-six".

Divisors: 1 2 4 7 14 28 43 86 172 301 602 1204 25309 50618 101236 177163 354326 708652 1088287 2176574 4353148 7618009 15236018 30472036