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22210231431 = 319715488073
BaseRepresentation
bin10100101011110101…
…010011110010000111
32010022212110122210010
4110223311103302013
5330441304401211
614111522201303
71414250565213
oct245365236207
963285418703
1022210231431
119468107673
12437a1b3233
13212c57c29b
141109a67943
1589ed094a6
hex52bd53c87

22210231431 has 16 divisors (see below), whose sum is σ = 31611306240. Its totient is φ = 13829941440.

The previous prime is 22210231429. The next prime is 22210231447. The reversal of 22210231431 is 13413201222.

It is not a de Polignac number, because 22210231431 - 21 = 22210231429 is a prime.

It is a super-2 number, since 2×222102314312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22210231398 and 22210231407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210231411) 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 15 ways as a sum of consecutive naturals, for example, 2739990 + ... + 2748083.

It is an arithmetic number, because the mean of its divisors is an integer number (1975706640).

Almost surely, 222210231431 is an apocalyptic number.

22210231431 is a deficient number, since it is larger than the sum of its proper divisors (9401074809).

22210231431 is a wasteful number, since it uses less digits than its factorization.

22210231431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5488166.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22210231431 its reverse (13413201222), we get a palindrome (35623432653).

The spelling of 22210231431 in words is "twenty-two billion, two hundred ten million, two hundred thirty-one thousand, four hundred thirty-one".

Divisors: 1 3 19 57 71 213 1349 4047 5488073 16464219 104273387 312820161 389653183 1168959549 7403410477 22210231431