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315132112 = 2431635347
BaseRepresentation
bin10010110010001…
…000100011010000
3210221222100222201
4102302020203100
51121133211422
651134212544
710544402341
oct2262104320
9727870881
10315132112
1115197a469
1289654154
1350398609
142dbd20c8
151c9ec727
hex12c888d0

315132112 has 20 divisors (see below), whose sum is σ = 630265216. Its totient is φ = 152483040.

The previous prime is 315132101. The next prime is 315132121. The reversal of 315132112 is 211231513.

315132112 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 315132112.

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, 317178 + ... + 318169.

Almost surely, 2315132112 is an apocalyptic number.

It is an amenable number.

315132112 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

315132112 is a wasteful number, since it uses less digits than its factorization.

315132112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635386 (or 635380 counting only the distinct ones).

The product of its digits is 180, while the sum is 19.

The square root of 315132112 is about 17751.9607931068. The cubic root of 315132112 is about 680.5043202281.

Adding to 315132112 its reverse (211231513), we get a palindrome (526363625).

The spelling of 315132112 in words is "three hundred fifteen million, one hundred thirty-two thousand, one hundred twelve".

Divisors: 1 2 4 8 16 31 62 124 248 496 635347 1270694 2541388 5082776 10165552 19695757 39391514 78783028 157566056 315132112