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501420304445701 = 2321800882801987
BaseRepresentation
bin111001000000010100000001…
…1001000010011000100000101
32102202101022110010222011010211
41302000220003020103010011
51011210232240414230301
64534233150255115421
7210421264402515424
oct16200500310230405
92382338403864124
10501420304445701
1113584a17a94a6a3
12482a2745512b71
13186a2968a6b974
148bb6c2d55b2bb
153ce815d3b5051
hex1c80a03213105

501420304445701 has 4 divisors (see below), whose sum is σ = 523221187247712. Its totient is φ = 479619421643692.

The previous prime is 501420304445699. The next prime is 501420304445869. The reversal of 501420304445701 is 107544403024105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 501420304445701 - 21 = 501420304445699 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 (501420304445101) 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, 10900441400971 + ... + 10900441401016.

It is an arithmetic number, because the mean of its divisors is an integer number (130805296811928).

Almost surely, 2501420304445701 is an apocalyptic number.

It is an amenable number.

501420304445701 is a deficient number, since it is larger than the sum of its proper divisors (21800882802011).

501420304445701 is a wasteful number, since it uses less digits than its factorization.

501420304445701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21800882802010.

The product of its (nonzero) digits is 268800, while the sum is 40.

Adding to 501420304445701 its reverse (107544403024105), we get a palindrome (608964707469806).

The spelling of 501420304445701 in words is "five hundred one trillion, four hundred twenty billion, three hundred four million, four hundred forty-five thousand, seven hundred one".

Divisors: 1 23 21800882801987 501420304445701