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22530060 = 22325717881
BaseRepresentation
bin101010111110…
…0100000001100
31120101122102200
41111330200030
521231430220
62122521500
7362334210
oct125744014
946348380
1022530060
1111799193
127666290
13488abc7
142dc6940
151ea0890
hex157c80c

22530060 has 72 divisors (see below), whose sum is σ = 78108576. Its totient is φ = 5149440.

The previous prime is 22530037. The next prime is 22530073. The reversal of 22530060 is 6003522.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7681 + ... + 10200.

Almost surely, 222530060 is an apocalyptic number.

22530060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22530060 is an abundant number, since it is smaller than the sum of its proper divisors (55578516).

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

22530060 is a wasteful number, since it uses less digits than its factorization.

22530060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17903 (or 17898 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 22530060 is about 4746.5840348613. The cubic root of 22530060 is about 282.4364751309.

Adding to 22530060 its reverse (6003522), we get a palindrome (28533582).

The spelling of 22530060 in words is "twenty-two million, five hundred thirty thousand, sixty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1260 17881 35762 53643 71524 89405 107286 125167 160929 178810 214572 250334 268215 321858 357620 375501 500668 536430 625835 643716 751002 804645 1072860 1126503 1251670 1502004 1609290 1877505 2253006 2503340 3218580 3755010 4506012 5632515 7510020 11265030 22530060