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22198930631 = 234720535551
BaseRepresentation
bin10100101011001010…
…001100110011000111
32010022002012111222222
4110223022030303013
5330430411240011
614110440042555
71414052540243
oct245312146307
963262174888
1022198930631
119461799169
12437646345b
13212a123617
141108365423
1589dd25ddb
hex52b28ccc7

22198930631 has 8 divisors (see below), whose sum is σ = 23656955904. Its totient is φ = 20781976600.

The previous prime is 22198930603. The next prime is 22198930639. The reversal of 22198930631 is 13603989122.

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

It is not a de Polignac number, because 22198930631 - 230 = 21125188807 is a prime.

It is a super-2 number, since 2×221989306312 (a number of 21 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 (22198930639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10266695 + ... + 10268856.

It is an arithmetic number, because the mean of its divisors is an integer number (2957119488).

Almost surely, 222198930631 is an apocalyptic number.

22198930631 is a deficient number, since it is larger than the sum of its proper divisors (1458025273).

22198930631 is a wasteful number, since it uses less digits than its factorization.

22198930631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20535621.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 22198930631 in words is "twenty-two billion, one hundred ninety-eight million, nine hundred thirty thousand, six hundred thirty-one".

Divisors: 1 23 47 1081 20535551 472317673 965170897 22198930631