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26031972 = 2232169331
BaseRepresentation
bin110001101001…
…1011101100100
31210222120011010
41203103131210
523131010342
62325542220
7434160651
oct143233544
953876133
1026031972
111377022a
128874970
135515b45
143658c28
15244329c
hex18d3764

26031972 has 12 divisors (see below), whose sum is σ = 60741296. Its totient is φ = 8677320.

The previous prime is 26031959. The next prime is 26031977. The reversal of 26031972 is 27913062.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (26031977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084654 + ... + 1084677.

Almost surely, 226031972 is an apocalyptic number.

It is an amenable number.

26031972 is an abundant number, since it is smaller than the sum of its proper divisors (34709324).

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

26031972 is a wasteful number, since it uses less digits than its factorization.

26031972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169338 (or 2169336 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 26031972 is about 5102.1536629153. The cubic root of 26031972 is about 296.3709890543.

The spelling of 26031972 in words is "twenty-six million, thirty-one thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 2169331 4338662 6507993 8677324 13015986 26031972