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26948920 = 23531103211
BaseRepresentation
bin110011011001…
…1010100111000
31212201010222011
41212303110320
523344331140
62401335304
7445030165
oct146632470
955633864
1026948920
1114237139
129037534
13577730b
14381706c
152574cea
hex19b3538

26948920 has 64 divisors (see below), whose sum is σ = 63498240. Its totient is φ = 10281600.

The previous prime is 26948891. The next prime is 26948947. The reversal of 26948920 is 2984962.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 127615 + ... + 127825.

It is an arithmetic number, because the mean of its divisors is an integer number (992160).

Almost surely, 226948920 is an apocalyptic number.

26948920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26948920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31749120).

26948920 is an abundant number, since it is smaller than the sum of its proper divisors (36549320).

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

26948920 is a wasteful number, since it uses less digits than its factorization.

26948920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 26948920 is about 5191.2349205175. The cubic root of 26948920 is about 299.8106953858.

The spelling of 26948920 in words is "twenty-six million, nine hundred forty-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 40 62 103 124 155 206 211 248 310 412 422 515 620 824 844 1030 1055 1240 1688 2060 2110 3193 4120 4220 6386 6541 8440 12772 13082 15965 21733 25544 26164 31930 32705 43466 52328 63860 65410 86932 108665 127720 130820 173864 217330 261640 434660 673723 869320 1347446 2694892 3368615 5389784 6737230 13474460 26948920