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307050013 = 1937479293
BaseRepresentation
bin10010010011010…
…011011000011101
3210101202202102201
4102103103120131
51112101100023
650245051501
710415611354
oct2223233035
9711682381
10307050013
1114835a246
12869b6b91
134b7c89ca
142caca99b
151be52bad
hex124d361d

307050013 has 16 divisors (see below), whose sum is σ = 339045120. Its totient is φ = 276975936.

The previous prime is 307050001. The next prime is 307050043. The reversal of 307050013 is 310050703.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-307050013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307050043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28395 + ... + 37687.

It is an arithmetic number, because the mean of its divisors is an integer number (21190320).

Almost surely, 2307050013 is an apocalyptic number.

It is an amenable number.

307050013 is a deficient number, since it is larger than the sum of its proper divisors (31995107).

307050013 is a wasteful number, since it uses less digits than its factorization.

307050013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9396.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 307050013 is about 17522.8426061527. The cubic root of 307050013 is about 674.6363019213.

The spelling of 307050013 in words is "three hundred seven million, fifty thousand, thirteen".

Divisors: 1 19 37 47 703 893 1739 9293 33041 176567 343841 436771 6532979 8298649 16160527 307050013