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1331013987296 = 25737160595317
BaseRepresentation
bin10011010111100110100…
…111011010101111100000
311201020120122122020200022
4103113212213122233200
5133301404040043141
62455243121013012
7165106524135410
oct23274647325740
94636518566608
101331013987296
11473530772954
12195b61a84168
139868b586106
14485c8542640
1524951a94b4b
hex135e69dabe0

1331013987296 has 48 divisors (see below), whose sum is σ = 3075721530336. Its totient is φ = 555017412096.

The previous prime is 1331013987283. The next prime is 1331013987311. The reversal of 1331013987296 is 6927893101331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80289371 + ... + 80305946.

It is an arithmetic number, because the mean of its divisors is an integer number (64077531882).

Almost surely, 21331013987296 is an apocalyptic number.

1331013987296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1331013987296 is an abundant number, since it is smaller than the sum of its proper divisors (1744707543040).

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

1331013987296 is a wasteful number, since it uses less digits than its factorization.

1331013987296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160595371 (or 160595363 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 1331013987296 in words is "one trillion, three hundred thirty-one billion, thirteen million, nine hundred eighty-seven thousand, two hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 37 56 74 112 148 224 259 296 518 592 1036 1184 2072 4144 8288 160595317 321190634 642381268 1124167219 1284762536 2248334438 2569525072 4496668876 5139050144 5942026729 8993337752 11884053458 17986675504 23768106916 35973351008 41594187103 47536213832 83188374206 95072427664 166376748412 190144855328 332753496824 665506993648 1331013987296