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307472207 = 7212749409
BaseRepresentation
bin10010010100111…
…010011101001111
3210102120012120112
4102110322131033
51112203102312
650302110235
710422320300
oct2224723517
9712505515
10307472207
11148618469
1286b7b37b
134b915c23
142cb9a7a7
151bed7d22
hex1253a74f

307472207 has 12 divisors (see below), whose sum is σ = 360495360. Its totient is φ = 261467136.

The previous prime is 307472203. The next prime is 307472227. The reversal of 307472207 is 702274703.

It is not a de Polignac number, because 307472207 - 22 = 307472203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307472203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18482 + ... + 30927.

It is an arithmetic number, because the mean of its divisors is an integer number (30041280).

Almost surely, 2307472207 is an apocalyptic number.

307472207 is a deficient number, since it is larger than the sum of its proper divisors (53023153).

307472207 is a wasteful number, since it uses less digits than its factorization.

307472207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49550 (or 49543 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 307472207 is about 17534.8854287674. The cubic root of 307472207 is about 674.9453687838.

The spelling of 307472207 in words is "three hundred seven million, four hundred seventy-two thousand, two hundred seven".

Divisors: 1 7 49 127 889 6223 49409 345863 2421041 6274943 43924601 307472207