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26680272 = 243599421
BaseRepresentation
bin110010111000…
…1101111010000
31212012111110020
41211301233100
523312232042
62351503440
7442531023
oct145615720
955174406
1026680272
1114073313
128b27b80
1356b1c58
1437871ba
1525203ec
hex1971bd0

26680272 has 40 divisors (see below), whose sum is σ = 70099680. Its totient is φ = 8741760.

The previous prime is 26680249. The next prime is 26680273. The reversal of 26680272 is 27208662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26680273) 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, 1879 + ... + 7542.

It is an arithmetic number, because the mean of its divisors is an integer number (1752492).

Almost surely, 226680272 is an apocalyptic number.

It is an amenable number.

26680272 is an abundant number, since it is smaller than the sum of its proper divisors (43419408).

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

26680272 is a wasteful number, since it uses less digits than its factorization.

26680272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9491 (or 9485 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 26680272 is about 5165.2949576960. The cubic root of 26680272 is about 298.8111169698.

The spelling of 26680272 in words is "twenty-six million, six hundred eighty thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 59 118 177 236 354 472 708 944 1416 2832 9421 18842 28263 37684 56526 75368 113052 150736 226104 452208 555839 1111678 1667517 2223356 3335034 4446712 6670068 8893424 13340136 26680272