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23452980 = 2235390883
BaseRepresentation
bin101100101110…
…1110100110100
31122010112102220
41121131310310
522000443410
62154402340
7403230015
oct131356464
948115386
1023452980
1112269631
127a303b0
134b22005
14318700c
1520d4070
hex165dd34

23452980 has 24 divisors (see below), whose sum is σ = 65668512. Its totient is φ = 6254112.

The previous prime is 23452937. The next prime is 23452981. The reversal of 23452980 is 8925432.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23452981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195382 + ... + 195501.

It is an arithmetic number, because the mean of its divisors is an integer number (2736188).

Almost surely, 223452980 is an apocalyptic number.

23452980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23452980 is an abundant number, since it is smaller than the sum of its proper divisors (42215532).

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

23452980 is a wasteful number, since it uses less digits than its factorization.

23452980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390895 (or 390893 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 23452980 is about 4842.8276863832. The cubic root of 23452980 is about 286.2415518441.

The spelling of 23452980 in words is "twenty-three million, four hundred fifty-two thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 390883 781766 1172649 1563532 1954415 2345298 3908830 4690596 5863245 7817660 11726490 23452980