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307817052 = 22325651421
BaseRepresentation
bin10010010110001…
…110101001011100
3210110012201121120
4102112032221130
51112300121202
650313330540
710425254544
oct2226165134
9713181546
10307817052
11148833564
1287106a50
134ba06b8a
142cc4a324
151c0550bc
hex1258ea5c

307817052 has 12 divisors (see below), whose sum is σ = 718239816. Its totient is φ = 102605680.

The previous prime is 307816963. The next prime is 307817063. The reversal of 307817052 is 250718703.

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

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its 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, 12825699 + ... + 12825722.

It is an arithmetic number, because the mean of its divisors is an integer number (59853318).

Almost surely, 2307817052 is an apocalyptic number.

It is an amenable number.

307817052 is an abundant number, since it is smaller than the sum of its proper divisors (410422764).

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

307817052 is a wasteful number, since it uses less digits than its factorization.

307817052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25651428 (or 25651426 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 307817052 is about 17544.7157856718. The cubic root of 307817052 is about 675.1976025040.

The spelling of 307817052 in words is "three hundred seven million, eight hundred seventeen thousand, fifty-two".

Divisors: 1 2 3 4 6 12 25651421 51302842 76954263 102605684 153908526 307817052