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26769140 = 2251338457
BaseRepresentation
bin110011000011…
…1011011110100
31212101000100122
41212013123310
523323103030
62353431112
7443351066
oct146073364
955330318
1026769140
1114124062
128b6b498
135713538
1437ab736
15253b8e5
hex19876f4

26769140 has 12 divisors (see below), whose sum is σ = 56215236. Its totient is φ = 10707648.

The previous prime is 26769139. The next prime is 26769181. The reversal of 26769140 is 4196762.

It can be written as a sum of positive squares in 2 ways, for example, as 16859236 + 9909904 = 4106^2 + 3148^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26769140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669209 + ... + 669248.

It is an arithmetic number, because the mean of its divisors is an integer number (4684603).

Almost surely, 226769140 is an apocalyptic number.

26769140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26769140 is an abundant number, since it is smaller than the sum of its proper divisors (29446096).

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

26769140 is a wasteful number, since it uses less digits than its factorization.

26769140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338466 (or 1338464 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 26769140 is about 5173.8902191678. The cubic root of 26769140 is about 299.1425143594.

The spelling of 26769140 in words is "twenty-six million, seven hundred sixty-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1338457 2676914 5353828 6692285 13384570 26769140