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23280332 = 227181973
BaseRepresentation
bin101100011001…
…1101011001100
31121210202121112
41120303223030
521424432312
62150551152
7401610455
oct130635314
947722545
1023280332
1112160949
1279684b8
134a9155a
14314012c
15209cd22
hex1633acc

23280332 has 12 divisors (see below), whose sum is σ = 41314896. Its totient is φ = 11476080.

The previous prime is 23280331. The next prime is 23280371. The reversal of 23280332 is 23308232.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23280298 and 23280307.

It is not an unprimeable number, because it can be changed into a prime (23280331) 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 3 ways as a sum of consecutive naturals, for example, 40703 + ... + 41270.

It is an arithmetic number, because the mean of its divisors is an integer number (3442908).

Almost surely, 223280332 is an apocalyptic number.

It is an amenable number.

23280332 is a deficient number, since it is larger than the sum of its proper divisors (18034564).

23280332 is a wasteful number, since it uses less digits than its factorization.

23280332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82048 (or 82046 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 23280332 is about 4824.9696372102. The cubic root of 23280332 is about 285.5374367009.

Adding to 23280332 its reverse (23308232), we get a palindrome (46588564).

The spelling of 23280332 in words is "twenty-three million, two hundred eighty thousand, three hundred thirty-two".

Divisors: 1 2 4 71 142 284 81973 163946 327892 5820083 11640166 23280332