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42760873621 = 149775736997
BaseRepresentation
bin100111110100101111…
…110010011010010101
311002101002010110010001
4213310233302122111
51200033240423441
631351041531301
73042440300014
oct476457623225
9132332113101
1042760873621
1117153442284
128354643b31
1340560607ab
1420d9128a7b
1511a4093731
hex9f4bf2695

42760873621 has 8 divisors (see below), whose sum is σ = 43054572600. Its totient is φ = 42467264448.

The previous prime is 42760873613. The next prime is 42760873627. The reversal of 42760873621 is 12637806724.

It can be written as a sum of positive squares in 4 ways, for example, as 9295659396 + 33465214225 = 96414^2 + 182935^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42760873621 - 23 = 42760873613 is a prime.

It is a super-2 number, since 2×427608736212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42760873627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137295 + ... + 1174291.

It is an arithmetic number, because the mean of its divisors is an integer number (5381821575).

Almost surely, 242760873621 is an apocalyptic number.

It is an amenable number.

42760873621 is a deficient number, since it is larger than the sum of its proper divisors (293698979).

42760873621 is a wasteful number, since it uses less digits than its factorization.

42760873621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44903.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 42760873621 in words is "forty-two billion, seven hundred sixty million, eight hundred seventy-three thousand, six hundred twenty-one".

Divisors: 1 149 7757 36997 1155793 5512553 286985729 42760873621