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20486088 = 2333717797
BaseRepresentation
bin100111000100…
…1011111001000
31102112210122000
41032021133020
520221023323
62011031000
7336062130
oct116113710
942483560
1020486088
1110622557
126a3b460
13432375c
142a13ac0
151be9e43
hex13897c8

20486088 has 128 divisors (see below), whose sum is σ = 68947200. Its totient is φ = 5501952.

The previous prime is 20486083. The next prime is 20486107. The reversal of 20486088 is 88068402.

20486088 is a `hidden beast` number, since 2 + 0 + 48 + 608 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20486083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25306 + ... + 26102.

It is an arithmetic number, because the mean of its divisors is an integer number (538650).

Almost surely, 220486088 is an apocalyptic number.

20486088 is a gapful number since it is divisible by the number (28) 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 20486088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34473600).

20486088 is an abundant number, since it is smaller than the sum of its proper divisors (48461112).

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

20486088 is a wasteful number, since it uses less digits than its factorization.

20486088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 20486088 is about 4526.1559849391. The cubic root of 20486088 is about 273.6232590261.

The spelling of 20486088 in words is "twenty million, four hundred eighty-six thousand, eighty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 17 18 21 24 27 28 34 36 42 51 54 56 63 68 72 84 102 108 119 126 136 153 168 189 204 216 238 252 306 357 378 408 459 476 504 612 714 756 797 918 952 1071 1224 1428 1512 1594 1836 2142 2391 2856 3188 3213 3672 4284 4782 5579 6376 6426 7173 8568 9564 11158 12852 13549 14346 16737 19128 21519 22316 25704 27098 28692 33474 40647 43038 44632 50211 54196 57384 66948 81294 86076 94843 100422 108392 121941 133896 150633 162588 172152 189686 200844 243882 284529 301266 325176 365823 379372 401688 487764 569058 602532 731646 758744 853587 975528 1138116 1205064 1463292 1707174 2276232 2560761 2926584 3414348 5121522 6828696 10243044 20486088