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312474630 = 23513801217
BaseRepresentation
bin10010100111111…
…111110000000110
3210202222100121110
4102213333300012
51114443142010
651001225450
710512663516
oct2247776006
9722870543
10312474630
111504248a6
1288792286
134c977b40
142d6dd846
151c675120
hex129ffc06

312474630 has 32 divisors (see below), whose sum is σ = 807627744. Its totient is φ = 76916736.

The previous prime is 312474629. The next prime is 312474647. The reversal of 312474630 is 36474213.

It is a super-3 number, since 3×3124746303 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400219 + ... + 400998.

It is an arithmetic number, because the mean of its divisors is an integer number (25238367).

Almost surely, 2312474630 is an apocalyptic number.

312474630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312474630 is an abundant number, since it is smaller than the sum of its proper divisors (495153114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312474630 is a wasteful number, since it uses less digits than its factorization.

312474630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801240.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 312474630 is about 17676.9519431377. The cubic root of 312474630 is about 678.5860397118.

The spelling of 312474630 in words is "three hundred twelve million, four hundred seventy-four thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 801217 1602434 2403651 4006085 4807302 8012170 10415821 12018255 20831642 24036510 31247463 52079105 62494926 104158210 156237315 312474630