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23078026 = 229397897
BaseRepresentation
bin101100000001…
…0010010001010
31121102111002201
41120002102022
521401444101
62142350414
7400105606
oct130022212
947374081
1023078026
1112032954
12788b40a
134a2044a
1430ca506
15205ce01
hex160248a

23078026 has 8 divisors (see below), whose sum is σ = 35810820. Its totient is φ = 11141088.

The previous prime is 23078023. The next prime is 23078063. The reversal of 23078026 is 62087032.

It can be written as a sum of positive squares in 2 ways, for example, as 21390625 + 1687401 = 4625^2 + 1299^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 23077985 and 23078003.

It is not an unprimeable number, because it can be changed into a prime (23078021) 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, 198891 + ... + 199006.

Almost surely, 223078026 is an apocalyptic number.

23078026 is a deficient number, since it is larger than the sum of its proper divisors (12732794).

23078026 is a wasteful number, since it uses less digits than its factorization.

23078026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397928.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 23078026 is about 4803.9594086545. The cubic root of 23078026 is about 284.7079227891.

The spelling of 23078026 in words is "twenty-three million, seventy-eight thousand, twenty-six".

Divisors: 1 2 29 58 397897 795794 11539013 23078026