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23028151 = 163141277
BaseRepresentation
bin101011111011…
…0000110110111
31121022221200111
41113312012313
521343400101
62141323451
7366510316
oct127660667
947287614
1023028151
1111aa9433
127866587
134a03833
1430b627d
15204d251
hex15f61b7

23028151 has 4 divisors (see below), whose sum is σ = 23169592. Its totient is φ = 22886712.

The previous prime is 23028139. The next prime is 23028163. The reversal of 23028151 is 15182032.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23028139) and next prime (23028163).

It is a cyclic number.

It is not a de Polignac number, because 23028151 - 213 = 23019959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23028121) 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, 70476 + ... + 70801.

It is an arithmetic number, because the mean of its divisors is an integer number (5792398).

Almost surely, 223028151 is an apocalyptic number.

23028151 is a deficient number, since it is larger than the sum of its proper divisors (141441).

23028151 is a wasteful number, since it uses less digits than its factorization.

23028151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141440.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 23028151 is about 4798.7655704358. The cubic root of 23028151 is about 284.5026763318.

The spelling of 23028151 in words is "twenty-three million, twenty-eight thousand, one hundred fifty-one".

Divisors: 1 163 141277 23028151