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23140678 = 2111051849
BaseRepresentation
bin101100001000…
…1100101000110
31121112200001011
41120101211012
521411000203
62143552434
7400456351
oct130214506
947480034
1023140678
1112075a30
1278bb71a
134a42b12
143105298
15207176d
hex1611946

23140678 has 8 divisors (see below), whose sum is σ = 37866600. Its totient is φ = 10518480.

The previous prime is 23140673. The next prime is 23140693. The reversal of 23140678 is 87604132.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23140673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525903 + ... + 525946.

It is an arithmetic number, because the mean of its divisors is an integer number (4733325).

Almost surely, 223140678 is an apocalyptic number.

23140678 is a deficient number, since it is larger than the sum of its proper divisors (14725922).

23140678 is a wasteful number, since it uses less digits than its factorization.

23140678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051862.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 23140678 is about 4810.4758600371. The cubic root of 23140678 is about 284.9653307576.

The spelling of 23140678 in words is "twenty-three million, one hundred forty thousand, six hundred seventy-eight".

Divisors: 1 2 11 22 1051849 2103698 11570339 23140678