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72115026 = 2312019171
BaseRepresentation
bin1000100110001…
…10001101010010
312000200211012220
410103012031102
5121430140101
611053401510
71533652614
oct423061522
9160624186
1072115026
11377860a5
1220199296
1311c2c419
149812db4
1564e7636
hex44c6352

72115026 has 8 divisors (see below), whose sum is σ = 144230064. Its totient is φ = 24038340.

The previous prime is 72114979. The next prime is 72115049. The reversal of 72115026 is 62051127.

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

72115026 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 72114987 and 72115005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6009580 + ... + 6009591.

It is an arithmetic number, because the mean of its divisors is an integer number (18028758).

Almost surely, 272115026 is an apocalyptic number.

72115026 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72115026 is a wasteful number, since it uses less digits than its factorization.

72115026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12019176.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 72115026 is about 8492.0566413561. The cubic root of 72115026 is about 416.2381872217.

The spelling of 72115026 in words is "seventy-two million, one hundred fifteen thousand, twenty-six".

Divisors: 1 2 3 6 12019171 24038342 36057513 72115026