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26985930 = 235899531
BaseRepresentation
bin110011011110…
…0010111001010
31212210000201220
41212330113022
523402022210
62402222510
7445243116
oct146742712
955700656
1026985930
1114261a24
129054a36
13578b10a
143826746
152580c70
hex19bc5ca

26985930 has 16 divisors (see below), whose sum is σ = 64766304. Its totient is φ = 7196240.

The previous prime is 26985929. The next prime is 26985989. The reversal of 26985930 is 3958962.

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, 449736 + ... + 449795.

It is an arithmetic number, because the mean of its divisors is an integer number (4047894).

Almost surely, 226985930 is an apocalyptic number.

26985930 is an abundant number, since it is smaller than the sum of its proper divisors (37780374).

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

26985930 is a wasteful number, since it uses less digits than its factorization.

26985930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899541.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 26985930 is about 5194.7983598981. The cubic root of 26985930 is about 299.9478798344.

The spelling of 26985930 in words is "twenty-six million, nine hundred eighty-five thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 899531 1799062 2698593 4497655 5397186 8995310 13492965 26985930