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22103130 = 2357105253
BaseRepresentation
bin101010001010…
…0010001011010
31112120221210110
41110110101122
521124300010
62105425150
7355605420
oct124242132
945527713
1022103130
1111527455
12749b1b6
13476b79a
142d15110
151e19120
hex151445a

22103130 has 32 divisors (see below), whose sum is σ = 60626304. Its totient is φ = 5052096.

The previous prime is 22103119. The next prime is 22103131. The reversal of 22103130 is 3130122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22103131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52417 + ... + 52836.

It is an arithmetic number, because the mean of its divisors is an integer number (1894572).

Almost surely, 222103130 is an apocalyptic number.

22103130 is an abundant number, since it is smaller than the sum of its proper divisors (38523174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22103130 is a wasteful number, since it uses less digits than its factorization.

22103130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105270.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 22103130 is about 4701.3966010112. The cubic root of 22103130 is about 280.6410905568.

Adding to 22103130 its reverse (3130122), we get a palindrome (25233252).

The spelling of 22103130 in words is "twenty-two million, one hundred three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 105253 210506 315759 526265 631518 736771 1052530 1473542 1578795 2210313 3157590 3683855 4420626 7367710 11051565 22103130