Search a number
-
+
42918393704143 = 263487629953197
BaseRepresentation
bin10011100001000101101111…
…00111000110111011001111
312121221221212122112221002111
421300202313213012323033
521111133332242013033
6231140234325404451
712016515543164656
oct1160426747067317
9177857778487074
1042918393704143
1112747652402931
124991a57269727
131ac4258264229
14a8539318419d
154e6614e4c7cd
hex2708b79c6ecf

42918393704143 has 16 divisors (see below), whose sum is σ = 43177709836800. Its totient is φ = 42659837247456.

The previous prime is 42918393704129. The next prime is 42918393704161. The reversal of 42918393704143 is 34140739381924.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42918393704143 - 25 = 42918393704111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42918393704743) 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, 806755621 + ... + 806808817.

It is an arithmetic number, because the mean of its divisors is an integer number (2698606864800).

Almost surely, 242918393704143 is an apocalyptic number.

42918393704143 is a deficient number, since it is larger than the sum of its proper divisors (259316132657).

42918393704143 is a wasteful number, since it uses less digits than its factorization.

42918393704143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60246.

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 42918393704143 in words is "forty-two trillion, nine hundred eighteen billion, three hundred ninety-three million, seven hundred four thousand, one hundred forty-three".

Divisors: 1 263 487 6299 53197 128081 1656637 3067613 13990811 25906939 335087903 806782219 6813524957 88128118489 163187808761 42918393704143