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22130902 = 279140069
BaseRepresentation
bin101010001101…
…1000011010110
31112122100220001
41110123003112
521131142102
62110201514
7356052403
oct124330326
945570801
1022130902
1111546302
1274b329a
13477b311
142d212aa
151e22487
hex151b0d6

22130902 has 8 divisors (see below), whose sum is σ = 33616800. Its totient is φ = 10925304.

The previous prime is 22130897. The next prime is 22130903. The reversal of 22130902 is 20903122.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22130902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22130903) 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, 69877 + ... + 70192.

It is an arithmetic number, because the mean of its divisors is an integer number (4202100).

Almost surely, 222130902 is an apocalyptic number.

22130902 is a deficient number, since it is larger than the sum of its proper divisors (11485898).

22130902 is a wasteful number, since it uses less digits than its factorization.

22130902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140150.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 22130902 is about 4704.3492642447. The cubic root of 22130902 is about 280.7585807394.

It can be divided in two parts, 22130 and 902, that added together give a palindrome (23032).

The spelling of 22130902 in words is "twenty-two million, one hundred thirty thousand, nine hundred two".

Divisors: 1 2 79 158 140069 280138 11065451 22130902