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307253630 = 2530725363
BaseRepresentation
bin10010010100000…
…101000101111110
3210102011002202002
4102110011011332
51112124104010
650253302302
710420420115
oct2224050576
9712132662
10307253630
11148489222
1286a94992
134b86a5a8
142cb40c7c
151be931a5
hex1250517e

307253630 has 8 divisors (see below), whose sum is σ = 553056552. Its totient is φ = 122901448.

The previous prime is 307253629. The next prime is 307253641. The reversal of 307253630 is 36352703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 307253593 and 307253602.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15362672 + ... + 15362691.

It is an arithmetic number, because the mean of its divisors is an integer number (69132069).

Almost surely, 2307253630 is an apocalyptic number.

307253630 is a deficient number, since it is larger than the sum of its proper divisors (245802922).

307253630 is a wasteful number, since it uses less digits than its factorization.

307253630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30725370.

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 307253630 is about 17528.6516880221. The cubic root of 307253630 is about 674.7853949687.

The spelling of 307253630 in words is "three hundred seven million, two hundred fifty-three thousand, six hundred thirty".

Divisors: 1 2 5 10 30725363 61450726 153626815 307253630