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26680872 = 2331111703
BaseRepresentation
bin110010111000…
…1111000101000
31212012112021110
41211301320220
523312241442
62351510320
7442532541
oct145617050
955175243
1026680872
1114073809
128b283a0
1356b22ca
1437874c8
15252069c
hex1971e28

26680872 has 16 divisors (see below), whose sum is σ = 66702240. Its totient is φ = 8893616.

The previous prime is 26680861. The next prime is 26680891. The reversal of 26680872 is 27808662.

It is a self number, because there is not a number n which added to its sum of digits gives 26680872.

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, 555828 + ... + 555875.

It is an arithmetic number, because the mean of its divisors is an integer number (4168890).

Almost surely, 226680872 is an apocalyptic number.

It is an amenable number.

26680872 is an abundant number, since it is smaller than the sum of its proper divisors (40021368).

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

26680872 is a wasteful number, since it uses less digits than its factorization.

26680872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111712 (or 1111708 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 26680872 is about 5165.3530373054. The cubic root of 26680872 is about 298.8133568936.

The spelling of 26680872 in words is "twenty-six million, six hundred eighty thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 1111703 2223406 3335109 4446812 6670218 8893624 13340436 26680872