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31110330423140 = 22552119131560709
BaseRepresentation
bin1110001001011011100000…
…01100011001011101100100
311002011010012102021101200022
413010231300030121131210
513034202424042020030
6150055515525334312
76360434663305403
oct704556014313544
9132133172241608
1031110330423140
119a048a952a931
1235a5482867398
1314488cb4c5227
14797a6882963a
1538e3b7655de5
hex1c4b70319764

31110330423140 has 48 divisors (see below), whose sum is σ = 65491349560560. Its totient is φ = 12413746575360.

The previous prime is 31110330423131. The next prime is 31110330423167. The reversal of 31110330423140 is 4132403301113.

It can be written as a sum of positive squares in 8 ways, for example, as 3564328804 + 31106766094336 = 59702^2 + 5577344^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19153106 + ... + 20713814.

It is an arithmetic number, because the mean of its divisors is an integer number (1364403115845).

Almost surely, 231110330423140 is an apocalyptic number.

It is an amenable number.

31110330423140 is an abundant number, since it is smaller than the sum of its proper divisors (34381019137420).

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

31110330423140 is a wasteful number, since it uses less digits than its factorization.

31110330423140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563152 (or 1563150 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31110330423140 its reverse (4132403301113), we get a palindrome (35242733724253).

The spelling of 31110330423140 in words is "thirty-one trillion, one hundred ten billion, three hundred thirty million, four hundred twenty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 521 1042 1913 2084 2605 3826 5210 7652 9565 10420 19130 38260 996673 1560709 1993346 3121418 3986692 4983365 6242836 7803545 9966730 15607090 19933460 31214180 813129389 1626258778 2985636317 3252517556 4065646945 5971272634 8131293890 11942545268 14928181585 16262587780 29856363170 59712726340 1555516521157 3111033042314 6222066084628 7777582605785 15555165211570 31110330423140