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21672874301 = 1313911993843
BaseRepresentation
bin10100001011110011…
…011101000100111101
32001221102100002101012
4110023303131010331
5323341223434201
613542324525005
71365034251311
oct241363350475
961842302335
1021672874301
119211855271
12424a250765
1320751475a0
141098549b41
1586ca625bb
hex50bcdd13d

21672874301 has 8 divisors (see below), whose sum is σ = 23507934240. Its totient is φ = 19861802352.

The previous prime is 21672874291. The next prime is 21672874351. The reversal of 21672874301 is 10347827612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21672874301 - 222 = 21668679997 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 (21672874351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5995115 + ... + 5998728.

It is an arithmetic number, because the mean of its divisors is an integer number (2938491780).

Almost surely, 221672874301 is an apocalyptic number.

It is an amenable number.

21672874301 is a deficient number, since it is larger than the sum of its proper divisors (1835059939).

21672874301 is a wasteful number, since it uses less digits than its factorization.

21672874301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11993995.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 21672874301 in words is "twenty-one billion, six hundred seventy-two million, eight hundred seventy-four thousand, three hundred one".

Divisors: 1 13 139 1807 11993843 155919959 1667144177 21672874301