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20248332 = 22313315379
BaseRepresentation
bin100110100111…
…1011100001100
31102002201111020
41031033130030
520140421312
62001554140
7334052016
oct115173414
942081436
1020248332
111047a965
126945950
13426c480
1429911b6
151b9e78c
hex134f70c

20248332 has 96 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 5840640.

The previous prime is 20248321. The next prime is 20248337. The reversal of 20248332 is 23384202.

It is not an unprimeable number, because it can be changed into a prime (20248337) 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 31 ways as a sum of consecutive naturals, for example, 256269 + ... + 256347.

It is an arithmetic number, because the mean of its divisors is an integer number (564480).

Almost surely, 220248332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20248332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27095040).

20248332 is an abundant number, since it is smaller than the sum of its proper divisors (33941748).

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

20248332 is a wasteful number, since it uses less digits than its factorization.

20248332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20248332 is about 4499.8146628500. The cubic root of 20248332 is about 272.5606048745.

The spelling of 20248332 in words is "twenty million, two hundred forty-eight thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 26 31 39 52 53 62 78 79 93 106 124 156 158 159 186 212 237 316 318 372 403 474 636 689 806 948 1027 1209 1378 1612 1643 2054 2067 2418 2449 2756 3081 3286 4108 4134 4187 4836 4898 4929 6162 6572 7347 8268 8374 9796 9858 12324 12561 14694 16748 19716 21359 25122 29388 31837 42718 50244 54431 63674 64077 85436 95511 108862 127348 128154 129797 163293 191022 217724 256308 259594 326586 382044 389391 519188 653172 778782 1557564 1687361 3374722 5062083 6749444 10124166 20248332