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27164680 = 23519311153
BaseRepresentation
bin110011110100…
…0000000001000
31220010002221021
41213220000020
523423232210
62410122224
7446616214
oct147500010
956102837
1027164680
1114374254
129120374
13582159a
143871944
1525b8bda
hex19e8008

27164680 has 64 divisors (see below), whose sum is σ = 66470400. Its totient is φ = 9953280.

The previous prime is 27164617. The next prime is 27164689. The reversal of 27164680 is 8646172.

It is not an unprimeable number, because it can be changed into a prime (27164689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22984 + ... + 24136.

It is an arithmetic number, because the mean of its divisors is an integer number (1038600).

Almost surely, 227164680 is an apocalyptic number.

27164680 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 27164680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33235200).

27164680 is an abundant number, since it is smaller than the sum of its proper divisors (39305720).

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

27164680 is a wasteful number, since it uses less digits than its factorization.

27164680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 27164680 is about 5211.9746737681. The cubic root of 27164680 is about 300.6086900786.

It can be divided in two parts, 2716 and 4680, that added together give a square (7396 = 862).

The spelling of 27164680 in words is "twenty-seven million, one hundred sixty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 31 38 40 62 76 95 124 152 155 190 248 310 380 589 620 760 1153 1178 1240 2306 2356 2945 4612 4712 5765 5890 9224 11530 11780 21907 23060 23560 35743 43814 46120 71486 87628 109535 142972 175256 178715 219070 285944 357430 438140 679117 714860 876280 1358234 1429720 2716468 3395585 5432936 6791170 13582340 27164680