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307742460 = 22355129041
BaseRepresentation
bin10010010101111…
…100011011111100
3210110001221021220
4102111330123330
51112240224320
650311553340
710424524224
oct2225743374
9713057256
10307742460
11148792513
128708b850
134b9abc3c
142cc2b084
151c03ce40
hex1257c6fc

307742460 has 24 divisors (see below), whose sum is σ = 861679056. Its totient is φ = 82064640.

The previous prime is 307742459. The next prime is 307742521. The reversal of 307742460 is 64247703.

307742460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2564461 + ... + 2564580.

It is an arithmetic number, because the mean of its divisors is an integer number (35903294).

Almost surely, 2307742460 is an apocalyptic number.

307742460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

307742460 is an abundant number, since it is smaller than the sum of its proper divisors (553936596).

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

307742460 is a wasteful number, since it uses less digits than its factorization.

307742460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129053 (or 5129051 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 307742460 is about 17542.5898886111. The cubic root of 307742460 is about 675.1430588413.

The spelling of 307742460 in words is "three hundred seven million, seven hundred forty-two thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 5129041 10258082 15387123 20516164 25645205 30774246 51290410 61548492 76935615 102580820 153871230 307742460