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26988080 = 245748193
BaseRepresentation
bin110011011110…
…0111000110000
31212210010200112
41212330320300
523402104310
62402240452
7445252310
oct146747060
955703615
1026988080
11142635a9
129056128
13578c0a2
143827440
152581705
hex19bce30

26988080 has 40 divisors (see below), whose sum is σ = 71712672. Its totient is φ = 9252864.

The previous prime is 26987981. The next prime is 26988089. The reversal of 26988080 is 8088962.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (26988089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23537 + ... + 24656.

Almost surely, 226988080 is an apocalyptic number.

26988080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26988080 is an abundant number, since it is smaller than the sum of its proper divisors (44724592).

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

26988080 is a wasteful number, since it uses less digits than its factorization.

26988080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48213 (or 48207 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 26988080 is about 5195.0052935488. The cubic root of 26988080 is about 299.9558453534.

The spelling of 26988080 in words is "twenty-six million, nine hundred eighty-eight thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 48193 96386 192772 240965 337351 385544 481930 674702 771088 963860 1349404 1686755 1927720 2698808 3373510 3855440 5397616 6747020 13494040 26988080