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26528080 = 2452231487
BaseRepresentation
bin110010100110…
…0100101010000
31211220202200111
41211030211100
523242344310
62344331104
7441325225
oct145144520
954822614
1026528080
1113a79a37
128a73a94
13565a8b7
14374794c
1524e028a
hex194c950

26528080 has 40 divisors (see below), whose sum is σ = 61996032. Its totient is φ = 10556544.

The previous prime is 26528077. The next prime is 26528083. The reversal of 26528080 is 8082562.

It is an interprime number because it is at equal distance from previous prime (26528077) and next prime (26528083).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26528083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17097 + ... + 18583.

Almost surely, 226528080 is an apocalyptic number.

26528080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

26528080 is the 2974-th octagonal number.

It is an amenable number.

26528080 is an abundant number, since it is smaller than the sum of its proper divisors (35467952).

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

26528080 is a wasteful number, since it uses less digits than its factorization.

26528080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 26528080 is about 5150.5417190816. The cubic root of 26528080 is about 298.2418648113.

The spelling of 26528080 in words is "twenty-six million, five hundred twenty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 223 446 892 1115 1487 1784 2230 2974 3568 4460 5948 7435 8920 11896 14870 17840 23792 29740 59480 118960 331601 663202 1326404 1658005 2652808 3316010 5305616 6632020 13264040 26528080