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319980544 = 210132432
BaseRepresentation
bin10011000100101…
…000010000000000
3211022002200210021
4103010220100000
51123403334134
651430143224
710633534612
oct2304502000
9738080707
10319980544
11154691134
128b1b1b14
13513a5400
14306d4db2
151d1590b4
hex13128400

319980544 has 99 divisors (see below), whose sum is σ = 709119693. Its totient is φ = 144248832.

The previous prime is 319980533. The next prime is 319980553. The reversal of 319980544 is 445089913.

It is a happy number.

The square root of 319980544 is 17888.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 47334400 + 272646144 = 6880^2 + 16512^2 .

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 319980544.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7441387 + ... + 7441429.

Almost surely, 2319980544 is an apocalyptic number.

319980544 is the 17888-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 319980544

319980544 is an abundant number, since it is smaller than the sum of its proper divisors (389139149).

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

319980544 is an equidigital number, since it uses as much as digits as its factorization.

319980544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The cubic root of 319980544 is about 683.9765161847.

The spelling of 319980544 in words is "three hundred nineteen million, nine hundred eighty thousand, five hundred forty-four".

Divisors: 1 2 4 8 13 16 26 32 43 52 64 86 104 128 169 172 208 256 338 344 416 512 559 676 688 832 1024 1118 1352 1376 1664 1849 2236 2704 2752 3328 3698 4472 5408 5504 6656 7267 7396 8944 10816 11008 13312 14534 14792 17888 21632 22016 24037 29068 29584 35776 43264 44032 48074 58136 59168 71552 86528 96148 116272 118336 143104 173056 192296 232544 236672 286208 312481 384592 465088 473344 572416 624962 769184 930176 946688 1249924 1538368 1860352 1893376 2499848 3076736 3720704 4999696 6153472 7441408 9999392 12306944 19998784 24613888 39997568 79995136 159990272 319980544