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420492223799 = 2087920139481
BaseRepresentation
bin1100001111001110100…
…10100010010100110111
31111012100211022012100122
412013213102202110313
523342132002130144
6521101011402155
742244121633504
oct6074722422467
91435324265318
10420492223799
1115236999744a
12695b1bb335b
1330862ca775b
14164cd9b84ab
15ae109937ee
hex61e74a2537

420492223799 has 4 divisors (see below), whose sum is σ = 420512384160. Its totient is φ = 420472063440.

The previous prime is 420492223771. The next prime is 420492223807. The reversal of 420492223799 is 997322294024.

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-420492223799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420492223799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420492223199) 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, 10048862 + ... + 10090619.

It is an arithmetic number, because the mean of its divisors is an integer number (105128096040).

Almost surely, 2420492223799 is an apocalyptic number.

420492223799 is a deficient number, since it is larger than the sum of its proper divisors (20160361).

420492223799 is a wasteful number, since it uses less digits than its factorization.

420492223799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20160360.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 420492223799 in words is "four hundred twenty billion, four hundred ninety-two million, two hundred twenty-three thousand, seven hundred ninety-nine".

Divisors: 1 20879 20139481 420492223799