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26523380 = 22513102013
BaseRepresentation
bin110010100101…
…1011011110100
31211220112020102
41211023123310
523242222010
62344253232
7441305432
oct145133364
954815212
1026523380
1113a76454
128a71218
135658710
143745d52
1524ddba5
hex194b6f4

26523380 has 24 divisors (see below), whose sum is σ = 59984232. Its totient is φ = 9793152.

The previous prime is 26523359. The next prime is 26523407. The reversal of 26523380 is 8332562.

It can be written as a sum of positive squares in 4 ways, for example, as 1162084 + 25361296 = 1078^2 + 5036^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50747 + ... + 51266.

It is an arithmetic number, because the mean of its divisors is an integer number (2499343).

Almost surely, 226523380 is an apocalyptic number.

26523380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26523380 is an abundant number, since it is smaller than the sum of its proper divisors (33460852).

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

26523380 is a wasteful number, since it uses less digits than its factorization.

26523380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102035 (or 102033 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 26523380 is about 5150.0854361845. The cubic root of 26523380 is about 298.2242505254.

The spelling of 26523380 in words is "twenty-six million, five hundred twenty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 102013 204026 408052 510065 1020130 1326169 2040260 2652338 5304676 6630845 13261690 26523380