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23728668045 = 351581911203
BaseRepresentation
bin10110000110010101…
…101011110110001101
32021020200200020020020
4112012111223312031
5342044014334140
614522323412353
71500006231135
oct260625536615
967220606206
1023728668045
11a07723a565
1247228240b9
1323120281a4
1412115a9ac5
1593d2966d0
hex58656bd8d

23728668045 has 8 divisors (see below), whose sum is σ = 37965868896. Its totient is φ = 12655289616.

The previous prime is 23728668043. The next prime is 23728668091. The reversal of 23728668045 is 54086682732.

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

It is not a de Polignac number, because 23728668045 - 21 = 23728668043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23728668043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790955587 + ... + 790955616.

It is an arithmetic number, because the mean of its divisors is an integer number (4745733612).

Almost surely, 223728668045 is an apocalyptic number.

It is an amenable number.

23728668045 is a deficient number, since it is larger than the sum of its proper divisors (14237200851).

23728668045 is a wasteful number, since it uses less digits than its factorization.

23728668045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581911211.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 23728668045 in words is "twenty-three billion, seven hundred twenty-eight million, six hundred sixty-eight thousand, forty-five".

Divisors: 1 3 5 15 1581911203 4745733609 7909556015 23728668045