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3121043542632 = 2332101342791537
BaseRepresentation
bin101101011010101100101…
…100010001001001101000
3102001100221220001100022200
4231122230230101021220
5402113344121331012
610345442042420200
7441326240251611
oct55325454211150
912040856040280
103121043542632
11aa3699794924
12424a67201660
1319840bc8b602
14ab0b8a82c08
15562bb12c3dc
hex2d6acb11268

3121043542632 has 48 divisors (see below), whose sum is σ = 8461170808740. Its totient is φ = 1039320826368.

The previous prime is 3121043542627. The next prime is 3121043542633. The reversal of 3121043542632 is 2362453401213.

3121043542632 is a `hidden beast` number, since 3 + 1 + 2 + 10 + 4 + 3 + 5 + 4 + 2 + 632 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2817986686596 + 303056856036 = 1678686^2 + 550506^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3121043542633) by changing a digit.

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, 21322833 + ... + 21468704.

Almost surely, 23121043542632 is an apocalyptic number.

It is an amenable number.

3121043542632 is an abundant number, since it is smaller than the sum of its proper divisors (5340127266108).

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

3121043542632 is a wasteful number, since it uses less digits than its factorization.

3121043542632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42792562 (or 42792555 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 3121043542632 its reverse (2362453401213), we get a palindrome (5483496943845).

The spelling of 3121043542632 in words is "three trillion, one hundred twenty-one billion, forty-three million, five hundred forty-two thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1013 2026 3039 4052 6078 8104 9117 12156 18234 24312 36468 72936 42791537 85583074 128374611 171166148 256749222 342332296 385123833 513498444 770247666 1026996888 1540495332 3080990664 43347826981 86695653962 130043480943 173391307924 260086961886 346782615848 390130442829 520173923772 780260885658 1040347847544 1560521771316 3121043542632