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23668620 = 2235421937
BaseRepresentation
bin101101001001…
…0011110001100
31122112111020120
41122102132030
522024343440
62203144540
7405115503
oct132223614
948474216
1023668620
11123a6648
127b15150
134b99201
14320183a
152127dd0
hex169278c

23668620 has 48 divisors (see below), whose sum is σ = 66500448. Its totient is φ = 6289920.

The previous prime is 23668613. The next prime is 23668627. The reversal of 23668620 is 2686632.

It is an interprime number because it is at equal distance from previous prime (23668613) and next prime (23668627).

It is not an unprimeable number, because it can be changed into a prime (23668627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24792 + ... + 25728.

It is an arithmetic number, because the mean of its divisors is an integer number (1385426).

Almost surely, 223668620 is an apocalyptic number.

23668620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23668620 is an abundant number, since it is smaller than the sum of its proper divisors (42831828).

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

23668620 is a wasteful number, since it uses less digits than its factorization.

23668620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 23668620 is about 4865.0405959252. The cubic root of 23668620 is about 287.1161657892.

The spelling of 23668620 in words is "twenty-three million, six hundred sixty-eight thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 421 842 937 1263 1684 1874 2105 2526 2811 3748 4210 4685 5052 5622 6315 8420 9370 11244 12630 14055 18740 25260 28110 56220 394477 788954 1183431 1577908 1972385 2366862 3944770 4733724 5917155 7889540 11834310 23668620