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312863476 = 22272928661
BaseRepresentation
bin10010101001011…
…110101011110100
3210210201010000011
4102221132223310
51120043112401
651013430004
710516203262
oct2251365364
9723633004
10312863476
1115066aa62
128893b304
134ca82b23
142d7a1432
151c700451
hex12a5eaf4

312863476 has 12 divisors (see below), whose sum is σ = 547730820. Its totient is φ = 156368960.

The previous prime is 312863471. The next prime is 312863483. The reversal of 312863476 is 674368213.

It can be written as a sum of positive squares in 2 ways, for example, as 305410576 + 7452900 = 17476^2 + 2730^2 .

It is a super-2 number, since 2×3128634762 = 195767109229605152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312863471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3415 + ... + 25246.

It is an arithmetic number, because the mean of its divisors is an integer number (45644235).

Almost surely, 2312863476 is an apocalyptic number.

It is an amenable number.

312863476 is a deficient number, since it is larger than the sum of its proper divisors (234867344).

312863476 is a wasteful number, since it uses less digits than its factorization.

312863476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31394 (or 31392 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 312863476 is about 17687.9471957602. The cubic root of 312863476 is about 678.8674023840.

The spelling of 312863476 in words is "three hundred twelve million, eight hundred sixty-three thousand, four hundred seventy-six".

Divisors: 1 2 4 2729 5458 10916 28661 57322 114644 78215869 156431738 312863476