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319644095980 = 225111684386263
BaseRepresentation
bin1001010011011000100…
…01011101010111101100
31010120001112202111110111
410221230101131113230
520214112342032410
6402501550145404
732044035662236
oct4515421352754
91116045674414
10319644095980
11113618839370
1251b481b2264
13241b0863c41
1411684061256
1584ac076b8a
hex4a6c45d5ec

319644095980 has 48 divisors (see below), whose sum is σ = 732327531264. Its totient is φ = 116225968320.

The previous prime is 319644095899. The next prime is 319644095989. The reversal of 319644095980 is 89590446913.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (319644095989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3662329 + ... + 3748591.

It is an arithmetic number, because the mean of its divisors is an integer number (15256823568).

Almost surely, 2319644095980 is an apocalyptic number.

It is an amenable number.

319644095980 is an abundant number, since it is smaller than the sum of its proper divisors (412683435284).

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

319644095980 is a wasteful number, since it uses less digits than its factorization.

319644095980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103126 (or 103124 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 319644095980 in words is "three hundred nineteen billion, six hundred forty-four million, ninety-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 16843 33686 67372 84215 86263 168430 172526 185273 336860 345052 370546 431315 741092 862630 926365 948893 1725260 1852730 1897786 3705460 3795572 4744465 9488930 18977860 1452927709 2905855418 5811710836 7264638545 14529277090 15982204799 29058554180 31964409598 63928819196 79911023995 159822047990 319644095980