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312505414 = 21319162929
BaseRepresentation
bin10010101000000…
…111010001000110
3210210000220211121
4102220013101012
51120000133124
651002024154
710513152334
oct2250072106
9723026747
10312505414
11150445a41
12887a805a
134c988b60
142d70ab54
151c67e2e4
hex12a07446

312505414 has 16 divisors (see below), whose sum is σ = 507467520. Its totient is φ = 143475840.

The previous prime is 312505409. The next prime is 312505463. The reversal of 312505414 is 414505213.

It is a happy number.

312505414 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3125054142 = 195319267558622792, which contains 22 as substring.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 26499 + ... + 36430.

It is an arithmetic number, because the mean of its divisors is an integer number (31716720).

Almost surely, 2312505414 is an apocalyptic number.

312505414 is a deficient number, since it is larger than the sum of its proper divisors (194962106).

312505414 is a wasteful number, since it uses less digits than its factorization.

312505414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63135.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 312505414 is about 17677.8226600450. The cubic root of 312505414 is about 678.6083230213.

The spelling of 312505414 in words is "three hundred twelve million, five hundred five thousand, four hundred fourteen".

Divisors: 1 2 13 26 191 382 2483 4966 62929 125858 818077 1636154 12019439 24038878 156252707 312505414