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319424512 = 2111121289
BaseRepresentation
bin10011000010100…
…000100000000000
3211021001110001111
4103002200200000
51123233041022
651410213104
710626030541
oct2302404000
9737043044
10319424512
11154341400
128ab84194
135123c2b4
14305cc4c8
151d099477
hex130a0800

319424512 has 72 divisors (see below), whose sum is σ = 702579150. Its totient is φ = 145080320.

The previous prime is 319424467. The next prime is 319424513. The reversal of 319424512 is 215424913.

It can be written as a sum of positive squares in only one way, i.e., 229098496 + 90326016 = 15136^2 + 9504^2 .

It is not an unprimeable number, because it can be changed into a prime (319424513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247164 + ... + 248452.

Almost surely, 2319424512 is an apocalyptic number.

319424512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 319424512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351289575).

319424512 is an abundant number, since it is smaller than the sum of its proper divisors (383154638).

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

319424512 is a wasteful number, since it uses less digits than its factorization.

319424512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333 (or 1302 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 319424512 is about 17872.4512028988. The cubic root of 319424512 is about 683.5801031935.

The spelling of 319424512 in words is "three hundred nineteen million, four hundred twenty-four thousand, five hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 121 128 176 242 256 352 484 512 704 968 1024 1289 1408 1936 2048 2578 2816 3872 5156 5632 7744 10312 11264 14179 15488 20624 22528 28358 30976 41248 56716 61952 82496 113432 123904 155969 164992 226864 247808 311938 329984 453728 623876 659968 907456 1247752 1319936 1814912 2495504 2639872 3629824 4991008 7259648 9982016 14519296 19964032 29038592 39928064 79856128 159712256 319424512