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315830072 = 2339478759
BaseRepresentation
bin10010110100110…
…010111100111000
3211000021211102002
4102310302330320
51121323030242
651201200132
710553340245
oct2264627470
9730254362
10315830072
11152306898
1289930048
13505811cc
142dd345cc
151cad9432
hex12d32f38

315830072 has 8 divisors (see below), whose sum is σ = 592181400. Its totient is φ = 157915032.

The previous prime is 315830069. The next prime is 315830107. The reversal of 315830072 is 270038513.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19739372 + ... + 19739387.

It is an arithmetic number, because the mean of its divisors is an integer number (74022675).

Almost surely, 2315830072 is an apocalyptic number.

It is an amenable number.

315830072 is a deficient number, since it is larger than the sum of its proper divisors (276351328).

315830072 is a wasteful number, since it uses less digits than its factorization.

315830072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39478765 (or 39478761 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 315830072 is about 17771.6085934842. The cubic root of 315830072 is about 681.0063473195.

Adding to 315830072 its reverse (270038513), we get a palindrome (585868585).

The spelling of 315830072 in words is "three hundred fifteen million, eight hundred thirty thousand, seventy-two".

Divisors: 1 2 4 8 39478759 78957518 157915036 315830072