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23220060 = 22351732237
BaseRepresentation
bin101100010010…
…0111101011100
31121200200221020
41120210331130
521421020220
62145404140
7401236653
oct130447534
947620836
1023220060
111211a636
127939650
134a6cca6
14312619a
15208a040
hex1624f5c

23220060 has 48 divisors (see below), whose sum is σ = 65421216. Its totient is φ = 6153472.

The previous prime is 23220049. The next prime is 23220073. The reversal of 23220060 is 6002232.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9262 + ... + 11498.

It is an arithmetic number, because the mean of its divisors is an integer number (1362942).

Almost surely, 223220060 is an apocalyptic number.

23220060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23220060 is an abundant number, since it is smaller than the sum of its proper divisors (42201156).

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

23220060 is a wasteful number, since it uses less digits than its factorization.

23220060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422 (or 2420 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23220060 is about 4818.7197469867. The cubic root of 23220060 is about 285.2908081198.

Adding to 23220060 its reverse (6002232), we get a palindrome (29222292).

The spelling of 23220060 in words is "twenty-three million, two hundred twenty thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 173 346 519 692 865 1038 1730 2076 2237 2595 3460 4474 5190 6711 8948 10380 11185 13422 22370 26844 33555 44740 67110 134220 387001 774002 1161003 1548004 1935005 2322006 3870010 4644012 5805015 7740020 11610030 23220060