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21422902795 = 572113179151
BaseRepresentation
bin10011111100111001…
…111000111000001011
32001021222222012221021
4103330321320320023
5322333230342140
613501435053311
71355610445360
oct237471707013
961258865837
1021422902795
1190a3740a48
12419a5a1237
132035414b58
14107327a467
15855b36b4a
hex4fce78e0b

21422902795 has 32 divisors (see below), whose sum is σ = 29615579136. Its totient is φ = 14572656000.

The previous prime is 21422902783. The next prime is 21422902847. The reversal of 21422902795 is 59720922412.

It is not a de Polignac number, because 21422902795 - 211 = 21422900747 is a prime.

It is a super-3 number, since 3×214229027953 (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2336470 + ... + 2345620.

It is an arithmetic number, because the mean of its divisors is an integer number (925486848).

Almost surely, 221422902795 is an apocalyptic number.

21422902795 is a deficient number, since it is larger than the sum of its proper divisors (8192676341).

21422902795 is a wasteful number, since it uses less digits than its factorization.

21422902795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9691.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 21422902795 in words is "twenty-one billion, four hundred twenty-two million, nine hundred two thousand, seven hundred ninety-five".

Divisors: 1 5 7 35 211 317 1055 1477 1585 2219 7385 9151 11095 45755 64057 66887 320285 334435 468209 1930861 2341045 2900867 9654305 13516027 14504335 20306069 67580135 101530345 612082937 3060414685 4284580559 21422902795