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42151615124 = 221761101100613
BaseRepresentation
bin100111010000011011…
…101001101010010100
311000210121200220120112
4213100123221222110
51142311303140444
631210355222152
73021361550123
oct472033515224
9130717626515
1042151615124
1116970540363
1282045a7958
133c89a729c8
14207c251aba
15116a84769e
hex9d06e9a94

42151615124 has 48 divisors (see below), whose sum is σ = 80171649936. Its totient is φ = 19317504000.

The previous prime is 42151615111. The next prime is 42151615189.

It is a happy number.

42151615124 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 2018704900 + 40132910224 = 44930^2 + 200332^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368642 + ... + 469254.

It is an arithmetic number, because the mean of its divisors is an integer number (1670242707).

Almost surely, 242151615124 is an apocalyptic number.

It is an amenable number.

42151615124 is a deficient number, since it is larger than the sum of its proper divisors (38020034812).

42151615124 is a wasteful number, since it uses less digits than its factorization.

42151615124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100796 (or 100794 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The spelling of 42151615124 in words is "forty-two billion, one hundred fifty-one million, six hundred fifteen thousand, one hundred twenty-four".

Divisors: 1 2 4 17 34 61 68 101 122 202 244 404 1037 1717 2074 3434 4148 6161 6868 12322 24644 100613 104737 201226 209474 402452 418948 1710421 3420842 6137393 6841684 10161913 12274786 20323826 24549572 40647652 104335681 172752521 208671362 345505042 417342724 619876693 691010084 1239753386 2479506772 10537903781 21075807562 42151615124