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23223113220 = 2235387051887
BaseRepresentation
bin10101101000001101…
…001001011000000100
32012221110101101101110
4111220031021120010
5340030104110340
614400223525020
71451330130306
oct255015113004
965843341343
1023223113220
11993792975a
124601459770
132261379918
1411a43a9976
1590dbd2680
hex568349604

23223113220 has 24 divisors (see below), whose sum is σ = 65024717184. Its totient is φ = 6192830176.

The previous prime is 23223113219. The next prime is 23223113227. The reversal of 23223113220 is 2231132232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23223113227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 193525884 + ... + 193526003.

It is an arithmetic number, because the mean of its divisors is an integer number (2709363216).

Almost surely, 223223113220 is an apocalyptic number.

23223113220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23223113220 is an abundant number, since it is smaller than the sum of its proper divisors (41801603964).

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

23223113220 is a wasteful number, since it uses less digits than its factorization.

23223113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387051899 (or 387051897 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23223113220 its reverse (2231132232), we get a palindrome (25454245452).

The spelling of 23223113220 in words is "twenty-three billion, two hundred twenty-three million, one hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 387051887 774103774 1161155661 1548207548 1935259435 2322311322 3870518870 4644622644 5805778305 7741037740 11611556610 23223113220