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312252470 = 2531225247
BaseRepresentation
bin10010100111001…
…001100000110110
3210202120001212022
4102213021200312
51114414034340
650552353142
710511050025
oct2247114066
9722501768
10312252470
111502929a2
12886a57b2
134c8ca99a
142d6828bc
151c62e3b5
hex129c9836

312252470 has 8 divisors (see below), whose sum is σ = 562054464. Its totient is φ = 124900984.

The previous prime is 312252469. The next prime is 312252511. The reversal of 312252470 is 74252213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3122524702 = 195003210042201800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 15612614 + ... + 15612633.

It is an arithmetic number, because the mean of its divisors is an integer number (70256808).

Almost surely, 2312252470 is an apocalyptic number.

312252470 is a deficient number, since it is larger than the sum of its proper divisors (249801994).

312252470 is a wasteful number, since it uses less digits than its factorization.

312252470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31225254.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 312252470 is about 17670.6669370457. Note that the first 3 decimals coincide. The cubic root of 312252470 is about 678.4251835424.

The spelling of 312252470 in words is "three hundred twelve million, two hundred fifty-two thousand, four hundred seventy".

Divisors: 1 2 5 10 31225247 62450494 156126235 312252470