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315150320 = 2453939379
BaseRepresentation
bin10010110010001…
…100111111110000
3210222000021222002
4102302030333300
51121134302240
651134433132
710544506412
oct2262147760
9728007862
10315150320
11151992111
12896627a8
13503a39a4
142dbd89b2
151ca02d15
hex12c8cff0

315150320 has 20 divisors (see below), whose sum is σ = 732724680. Its totient is φ = 126060096.

The previous prime is 315150307. The next prime is 315150331. The reversal of 315150320 is 23051513.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×3151503202 = 198639448392204800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 315150292 and 315150301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969610 + ... + 1969769.

It is an arithmetic number, because the mean of its divisors is an integer number (36636234).

Almost surely, 2315150320 is an apocalyptic number.

It is an amenable number.

315150320 is an abundant number, since it is smaller than the sum of its proper divisors (417574360).

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

315150320 is a wasteful number, since it uses less digits than its factorization.

315150320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939392 (or 3939386 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 315150320 is about 17752.4736304550. The cubic root of 315150320 is about 680.5174262489.

The spelling of 315150320 in words is "three hundred fifteen million, one hundred fifty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 3939379 7878758 15757516 19696895 31515032 39393790 63030064 78787580 157575160 315150320