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312468091 = 13191265053
BaseRepresentation
bin10010100111111…
…110001001111011
3210202222000122021
4102213332021323
51114442434331
651001135311
710512635455
oct2247761173
9722860567
10312468091
1115041a9a1
128878a537
134c974b80
142d6db2d5
151c673211
hex129fe27b

312468091 has 8 divisors (see below), whose sum is σ = 354215120. Its totient is φ = 273251232.

The previous prime is 312468077. The next prime is 312468157. The reversal of 312468091 is 190864213.

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

It is a cyclic number.

It is not a de Polignac number, because 312468091 - 25 = 312468059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312468061) 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, 632280 + ... + 632773.

It is an arithmetic number, because the mean of its divisors is an integer number (44276890).

Almost surely, 2312468091 is an apocalyptic number.

312468091 is a deficient number, since it is larger than the sum of its proper divisors (41747029).

312468091 is a wasteful number, since it uses less digits than its factorization.

312468091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265085.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 312468091 is about 17676.7669838124. The cubic root of 312468091 is about 678.5813062021.

The spelling of 312468091 in words is "three hundred twelve million, four hundred sixty-eight thousand, ninety-one".

Divisors: 1 13 19 247 1265053 16445689 24036007 312468091