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313257984 = 2123133753
BaseRepresentation
bin10010101010111…
…111000000000000
3210211110011011120
4102222333000000
51120143223414
651030112240
710522435404
oct2252770000
9724404146
10313257984
1115090a3a6
1288aab680
134cb90570
142d865104
151c77c2a9
hex12abf000

313257984 has 208 divisors, whose sum is σ = 941244192. Its totient is φ = 92012544.

The previous prime is 313257983. The next prime is 313258003. The reversal of 313257984 is 489752313.

It is a tau number, because it is divible by the number of its divisors (208).

Its product of digits (181440) is a multiple of the sum of its prime divisors (108).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313257983) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5910502 + ... + 5910554.

Almost surely, 2313257984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313257984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470622096).

313257984 is an abundant number, since it is smaller than the sum of its proper divisors (627986208).

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

313257984 is a wasteful number, since it uses less digits than its factorization.

313257984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 108 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 313257984 is about 17699.0955701132. The cubic root of 313257984 is about 679.1526238422.

It can be divided in two parts, 3132 and 57984, that added together give a palindrome (61116).

The spelling of 313257984 in words is "three hundred thirteen million, two hundred fifty-seven thousand, nine hundred eighty-four".