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136884460 = 22537971907
BaseRepresentation
bin10000010100010…
…11000011101100
3100112120110011211
420022023003230
5240020300320
621325524204
73251333026
oct1012130354
9315513154
10136884460
11702a4359
1239a13664
132248922b
1414273016
15c03d55a
hex828b0ec

136884460 has 48 divisors (see below), whose sum is σ = 298426464. Its totient is φ = 52697088.

The previous prime is 136884457. The next prime is 136884481. The reversal of 136884460 is 64488631.

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, 70827 + ... + 72733.

It is an arithmetic number, because the mean of its divisors is an integer number (6217218).

Almost surely, 2136884460 is an apocalyptic number.

136884460 is a gapful number since it is divisible by the number (10) 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 136884460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149213232).

136884460 is an abundant number, since it is smaller than the sum of its proper divisors (161542004).

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

136884460 is a wasteful number, since it uses less digits than its factorization.

136884460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050 (or 2048 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 136884460 is about 11699.7632454678. The cubic root of 136884460 is about 515.3687119859.

The spelling of 136884460 in words is "one hundred thirty-six million, eight hundred eighty-four thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 37 74 97 148 185 194 370 388 485 740 970 1907 1940 3589 3814 7178 7628 9535 14356 17945 19070 35890 38140 70559 71780 141118 184979 282236 352795 369958 705590 739916 924895 1411180 1849790 3699580 6844223 13688446 27376892 34221115 68442230 136884460