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26413990 = 2519139021
BaseRepresentation
bin110010011000…
…0101110100110
31211200222011221
41210300232212
523230221430
62342050554
7440341501
oct144605646
954628157
1026413990
1113a01249
128a19a5a
13561a9a5
143718138
1524bb57a
hex1930ba6

26413990 has 16 divisors (see below), whose sum is σ = 50047920. Its totient is φ = 10009440.

The previous prime is 26413979. The next prime is 26413993. The reversal of 26413990 is 9931462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26413993) 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, 69321 + ... + 69700.

It is an arithmetic number, because the mean of its divisors is an integer number (3127995).

Almost surely, 226413990 is an apocalyptic number.

26413990 is a deficient number, since it is larger than the sum of its proper divisors (23633930).

26413990 is a wasteful number, since it uses less digits than its factorization.

26413990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139047.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 26413990 is about 5139.4542511827. The cubic root of 26413990 is about 297.8136982464.

The spelling of 26413990 in words is "twenty-six million, four hundred thirteen thousand, nine hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 139021 278042 695105 1390210 2641399 5282798 13206995 26413990