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31033102311988 = 2272216017329853
BaseRepresentation
bin1110000111001011101010…
…00010100010001000110100
311001212201212020221212100021
413003211311002202020310
513031421243142440423
6150000224351054524
76352032130221400
oct703456502421064
9131781766855307
1031033102311988
119985079250987
12359250b211444
13144154172733a
1479401dc78100
1538c3976bc95d
hex1c39750a2234

31033102311988 has 36 divisors (see below), whose sum is σ = 63177462937092. Its totient is φ = 13299283468800.

The previous prime is 31033102311971. The next prime is 31033102312073. The reversal of 31033102311988 is 88911320133013.

It can be written as a sum of positive squares in 2 ways, for example, as 22960753060644 + 8072349251344 = 4791738^2 + 2841188^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568870 + ... + 7898722.

Almost surely, 231033102311988 is an apocalyptic number.

It is an amenable number.

31033102311988 is an abundant number, since it is smaller than the sum of its proper divisors (32144360625104).

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

31033102311988 is a wasteful number, since it uses less digits than its factorization.

31033102311988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7351472 (or 7351463 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 31033102311988 in words is "thirty-one trillion, thirty-three billion, one hundred two million, three hundred eleven thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 21601 43202 86404 151207 302414 604828 1058449 2116898 4233796 7329853 14659706 29319412 51308971 102617942 205235884 359162797 718325594 1436651188 158332154653 316664309306 633328618612 1108325082571 2216650165142 4433300330284 7758275577997 15516551155994 31033102311988