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307513146 = 23142336017
BaseRepresentation
bin10010010101000…
…100011100111010
3210102122021201210
4102111010130322
51112210410041
650303023550
710422550533
oct2225043472
9712567653
10307513146
111486461a6
1286b9abb6
134b92b755
142cbab68a
151bee5016
hex1254473a

307513146 has 16 divisors (see below), whose sum is σ = 615475584. Its totient is φ = 102429504.

The previous prime is 307513123. The next prime is 307513147. The reversal of 307513146 is 641315703.

It is not an unprimeable number, because it can be changed into a prime (307513147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9471 + ... + 26546.

It is an arithmetic number, because the mean of its divisors is an integer number (38467224).

Almost surely, 2307513146 is an apocalyptic number.

307513146 is an abundant number, since it is smaller than the sum of its proper divisors (307962438).

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

307513146 is a wasteful number, since it uses less digits than its factorization.

307513146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37445.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 307513146 is about 17536.0527485521. The cubic root of 307513146 is about 674.9753231034.

Adding to 307513146 its reverse (641315703), we get a palindrome (948828849).

The spelling of 307513146 in words is "three hundred seven million, five hundred thirteen thousand, one hundred forty-six".

Divisors: 1 2 3 6 1423 2846 4269 8538 36017 72034 108051 216102 51252191 102504382 153756573 307513146