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42868392911 = 50227853493
BaseRepresentation
bin100111111011001001…
…111100001111001111
311002122120102222211222
4213323021330033033
51200243302033121
631405442233555
73045214220231
oct477311741717
9132576388758
1042868392911
11171a90aa0a3
1283846558bb
134072407986
142109516251
1511ad7310ab
hex9fb27c3cf

42868392911 has 4 divisors (see below), whose sum is σ = 42869296632. Its totient is φ = 42867489192.

The previous prime is 42868392869. The next prime is 42868392943. The reversal of 42868392911 is 11929386824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42868392911 is a prime.

It is a super-2 number, since 2×428683929112 (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 (42868352911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376520 + ... + 476973.

It is an arithmetic number, because the mean of its divisors is an integer number (10717324158).

Almost surely, 242868392911 is an apocalyptic number.

42868392911 is a deficient number, since it is larger than the sum of its proper divisors (903721).

42868392911 is an equidigital number, since it uses as much as digits as its factorization.

42868392911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903720.

The product of its digits is 1492992, while the sum is 53.

The spelling of 42868392911 in words is "forty-two billion, eight hundred sixty-eight million, three hundred ninety-two thousand, nine hundred eleven".

Divisors: 1 50227 853493 42868392911