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315629430 = 23510520981
BaseRepresentation
bin10010110100000…
…001111101110110
3210222220122011220
4102310001331312
51121300120210
651153011210
710551543264
oct2264017566
9728818156
10315629430
1115218a076
1289853b06
1350510a9c
142dcc1434
151ca99c70
hex12d01f76

315629430 has 16 divisors (see below), whose sum is σ = 757510704. Its totient is φ = 84167840.

The previous prime is 315629423. The next prime is 315629441. The reversal of 315629430 is 34926513.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 315629391 and 315629400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5260461 + ... + 5260520.

It is an arithmetic number, because the mean of its divisors is an integer number (47344419).

Almost surely, 2315629430 is an apocalyptic number.

315629430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

315629430 is an abundant number, since it is smaller than the sum of its proper divisors (441881274).

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

315629430 is a wasteful number, since it uses less digits than its factorization.

315629430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10520991.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 315629430 is about 17765.9626814873. The cubic root of 315629430 is about 680.8621058084.

The spelling of 315629430 in words is "three hundred fifteen million, six hundred twenty-nine thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 10520981 21041962 31562943 52604905 63125886 105209810 157814715 315629430