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42942913144 = 235579637099
BaseRepresentation
bin100111111111100110…
…001101101001111000
311002211202200000101121
4213333212031221320
51200421341210034
631421103355024
73050110511335
oct477746155170
9132752600347
1042942913144
111723717826a
1283a55b2a74
134084999aa1
14211539398c
1511b50511b4
hex9ff98da78

42942913144 has 16 divisors (see below), whose sum is σ = 80662527000. Its totient is φ = 21432905952.

The previous prime is 42942913129. The next prime is 42942913147. The reversal of 42942913144 is 44131924924.

It is a self number, because there is not a number n which added to its sum of digits gives 42942913144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42942913147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4814094 + ... + 4823005.

Almost surely, 242942913144 is an apocalyptic number.

It is an amenable number.

42942913144 is a deficient number, since it is larger than the sum of its proper divisors (37719613856).

42942913144 is a wasteful number, since it uses less digits than its factorization.

42942913144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9637662 (or 9637658 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The spelling of 42942913144 in words is "forty-two billion, nine hundred forty-two million, nine hundred thirteen thousand, one hundred forty-four".

Divisors: 1 2 4 8 557 1114 2228 4456 9637099 19274198 38548396 77096792 5367864143 10735728286 21471456572 42942913144