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307102516 = 227372511181
BaseRepresentation
bin10010010011100…
…000001100110100
3210101212102110021
4102103200030310
51112104240031
650250134524
710416220420
oct2223401464
9711772407
10307102516
11148395736
1286a21444
134b816886
142cb01b80
151be63511
hex124e0334

307102516 has 48 divisors (see below), whose sum is σ = 633854592. Its totient is φ = 127440000.

The previous prime is 307102483. The next prime is 307102541. The reversal of 307102516 is 615201703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259446 + ... + 260626.

It is an arithmetic number, because the mean of its divisors is an integer number (13205304).

Almost surely, 2307102516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307102516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316927296).

307102516 is an abundant number, since it is smaller than the sum of its proper divisors (326752076).

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

307102516 is a wasteful number, since it uses less digits than its factorization.

307102516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 307102516 is about 17524.3406723334. The cubic root of 307102516 is about 674.6747521298.

The spelling of 307102516 in words is "three hundred seven million, one hundred two thousand, five hundred sixteen".

Divisors: 1 2 4 7 14 28 37 74 148 251 259 502 518 1004 1036 1181 1757 2362 3514 4724 7028 8267 9287 16534 18574 33068 37148 43697 65009 87394 130018 174788 260036 296431 305879 592862 611758 1185724 1223516 2075017 4150034 8300068 10967947 21935894 43871788 76775629 153551258 307102516