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315420412 = 22313768749
BaseRepresentation
bin10010110011001…
…110111011111100
3210222112000110111
4102303032323330
51121221423122
651144315404
710550013016
oct2263167374
9728460414
10315420412
1115205702a
1289772b64
13504698c8
142dc691b6
151ca57d77
hex12cceefc

315420412 has 24 divisors (see below), whose sum is σ = 585200000. Its totient is φ = 148495680.

The previous prime is 315420409. The next prime is 315420419. The reversal of 315420412 is 214024513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315420419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29787 + ... + 38962.

Almost surely, 2315420412 is an apocalyptic number.

It is an amenable number.

315420412 is a deficient number, since it is larger than the sum of its proper divisors (269779588).

315420412 is a wasteful number, since it uses less digits than its factorization.

315420412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68821 (or 68819 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 315420412 is about 17760.0791664902. The cubic root of 315420412 is about 680.7117777675.

Adding to 315420412 its reverse (214024513), we get a palindrome (529444925).

The spelling of 315420412 in words is "three hundred fifteen million, four hundred twenty thousand, four hundred twelve".

Divisors: 1 2 4 31 37 62 74 124 148 1147 2294 4588 68749 137498 274996 2131219 2543713 4262438 5087426 8524876 10174852 78855103 157710206 315420412