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26873980 = 22571910103
BaseRepresentation
bin110011010000…
…1000001111100
31212120100011121
41212201001330
523334431410
62400000324
7444265540
oct146410174
955510147
1026873980
1114195901
1290000a4
13574c183
1437d7a20
15255c9da
hex19a107c

26873980 has 48 divisors (see below), whose sum is σ = 67898880. Its totient is φ = 8728128.

The previous prime is 26873941. The next prime is 26874007. The reversal of 26873980 is 8937862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2392 + ... + 7711.

It is an arithmetic number, because the mean of its divisors is an integer number (1414560).

Almost surely, 226873980 is an apocalyptic number.

26873980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26873980 is an abundant number, since it is smaller than the sum of its proper divisors (41024900).

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

26873980 is a wasteful number, since it uses less digits than its factorization.

26873980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10138 (or 10136 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 26873980 is about 5184.0119598627. The cubic root of 26873980 is about 299.5325312141.

The spelling of 26873980 in words is "twenty-six million, eight hundred seventy-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 380 532 665 1330 2660 10103 20206 40412 50515 70721 101030 141442 191957 202060 282884 353605 383914 707210 767828 959785 1343699 1414420 1919570 2687398 3839140 5374796 6718495 13436990 26873980