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315038212 = 2278759553
BaseRepresentation
bin10010110001110…
…001101000000100
3210221210121011221
4102301301220010
51121122210322
651132210124
710543531516
oct2261615004
9727717157
10315038212
11151915965
1289609944
1350364958
142dba9bb6
151c9ce9c7
hex12c71a04

315038212 has 6 divisors (see below), whose sum is σ = 551316878. Its totient is φ = 157519104.

The previous prime is 315038197. The next prime is 315038233. The reversal of 315038212 is 212830513.

It can be written as a sum of positive squares in only one way, i.e., 211527936 + 103510276 = 14544^2 + 10174^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39379773 + ... + 39379780.

Almost surely, 2315038212 is an apocalyptic number.

It is an amenable number.

315038212 is a deficient number, since it is larger than the sum of its proper divisors (236278666).

315038212 is a wasteful number, since it uses less digits than its factorization.

315038212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78759557 (or 78759555 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 315038212 is about 17749.3158177999. The cubic root of 315038212 is about 680.4367234954.

Adding to 315038212 its reverse (212830513), we get a palindrome (527868725).

The spelling of 315038212 in words is "three hundred fifteen million, thirty-eight thousand, two hundred twelve".

Divisors: 1 2 4 78759553 157519106 315038212