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26769428 = 227956051
BaseRepresentation
bin110011000011…
…1100000010100
31212101000202022
41212013200110
523323110203
62353432312
7443351660
oct146074024
955330668
1026769428
11141242a4
128b6b698
1357136ca
1437ab8a0
15253ba38
hex1987814

26769428 has 12 divisors (see below), whose sum is σ = 53538912. Its totient is φ = 11472600.

The previous prime is 26769427. The next prime is 26769437. The reversal of 26769428 is 82496762.

26769428 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26769427) 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, 477998 + ... + 478053.

It is an arithmetic number, because the mean of its divisors is an integer number (4461576).

Almost surely, 226769428 is an apocalyptic number.

26769428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26769428 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.

26769428 is a wasteful number, since it uses less digits than its factorization.

26769428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956062 (or 956060 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 26769428 is about 5173.9180511485. The cubic root of 26769428 is about 299.1435871461.

The spelling of 26769428 in words is "twenty-six million, seven hundred sixty-nine thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 956051 1912102 3824204 6692357 13384714 26769428