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23728133 = 1113165931
BaseRepresentation
bin101101010000…
…1000000000101
31122122111212202
41122201000011
522033300013
62204324245
7405454142
oct132410005
948574782
1023728133
1112437330
127b43685
134bba320
1432193c9
15213a858
hex16a1005

23728133 has 8 divisors (see below), whose sum is σ = 27876576. Its totient is φ = 19911600.

The previous prime is 23728109. The next prime is 23728147. The reversal of 23728133 is 33182732.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23728133 - 26 = 23728069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23728096 and 23728105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23728183) 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, 82823 + ... + 83108.

It is an arithmetic number, because the mean of its divisors is an integer number (3484572).

Almost surely, 223728133 is an apocalyptic number.

It is an amenable number.

23728133 is a deficient number, since it is larger than the sum of its proper divisors (4148443).

23728133 is a wasteful number, since it uses less digits than its factorization.

23728133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165955.

The product of its digits is 6048, while the sum is 29.

The square root of 23728133 is about 4871.1531488961. The cubic root of 23728133 is about 287.3566085202.

The spelling of 23728133 in words is "twenty-three million, seven hundred twenty-eight thousand, one hundred thirty-three".

Divisors: 1 11 13 143 165931 1825241 2157103 23728133