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315470152 = 2339433769
BaseRepresentation
bin10010110011011…
…011000101001000
3210222121112200201
4102303123011020
51121230021102
651145341544
710550311024
oct2263330510
9728545621
10315470152
11152090438
12897978b4
135048643a
142dc7d384
151ca67987
hex12cdb148

315470152 has 8 divisors (see below), whose sum is σ = 591506550. Its totient is φ = 157735072.

The previous prime is 315470131. The next prime is 315470153. The reversal of 315470152 is 251074513.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 243796996 + 71673156 = 15614^2 + 8466^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 315470152.

It is not an unprimeable number, because it can be changed into a prime (315470153) by changing a digit.

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 as a sum of consecutive naturals, namely, 19716877 + ... + 19716892.

Almost surely, 2315470152 is an apocalyptic number.

It is an amenable number.

315470152 is a deficient number, since it is larger than the sum of its proper divisors (276036398).

315470152 is a wasteful number, since it uses less digits than its factorization.

315470152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39433775 (or 39433771 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 315470152 is about 17761.4794428843. The cubic root of 315470152 is about 680.7475573418.

The spelling of 315470152 in words is "three hundred fifteen million, four hundred seventy thousand, one hundred fifty-two".

Divisors: 1 2 4 8 39433769 78867538 157735076 315470152