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1112312000020 = 2251336731164749
BaseRepresentation
bin10000001011111010111…
…101100010111000010100
310221100001221021011122111
4100023322331202320110
5121211003333000040
62210553350240404
7143235062000224
oct20137275427024
93840057234574
101112312000020
11399802142921
1215b6a7056104
1380b7677c8a0
143bb9c700084
151de01800dea
hex102faf62e14

1112312000020 has 48 divisors (see below), whose sum is σ = 2516223402000. Its totient is φ = 410587646976.

The previous prime is 1112311999991. The next prime is 1112312000021. The reversal of 1112312000020 is 200002132111.

It can be written as a sum of positive squares in 8 ways, for example, as 289394506116 + 822917493904 = 537954^2 + 907148^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112312000021) 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, 372606 + ... + 1537354.

It is an arithmetic number, because the mean of its divisors is an integer number (52421320875).

Almost surely, 21112312000020 is an apocalyptic number.

1112312000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112312000020 is an abundant number, since it is smaller than the sum of its proper divisors (1403911401980).

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

1112312000020 is a wasteful number, since it uses less digits than its factorization.

1112312000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168444 (or 1168442 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1112312000020 its reverse (200002132111), we get a palindrome (1312314132131).

The spelling of 1112312000020 in words is "one trillion, one hundred twelve billion, three hundred twelve million, twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 3673 7346 14692 18365 36730 47749 73460 95498 190996 238745 477490 954980 1164749 2329498 4658996 5823745 11647490 15141737 23294980 30283474 60566948 75708685 151417370 302834740 4278123077 8556246154 17112492308 21390615385 42781230770 55615600001 85562461540 111231200002 222462400004 278078000005 556156000010 1112312000020