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20468252 = 2272337859
BaseRepresentation
bin100111000010…
…1001000011100
31102111220011102
41032011020130
520214441002
62010412232
7335656130
oct116051034
942456142
1020468252
1110610112
126a31078
1343185bc
142a0b3c0
151be4a02
hex138521c

20468252 has 48 divisors (see below), whose sum is σ = 43921920. Its totient is φ = 8154432.

The previous prime is 20468237. The next prime is 20468281. The reversal of 20468252 is 25286402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23399 + ... + 24257.

It is an arithmetic number, because the mean of its divisors is an integer number (915040).

Almost surely, 220468252 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 20468252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21960960).

20468252 is an abundant number, since it is smaller than the sum of its proper divisors (23453668).

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

20468252 is a wasteful number, since it uses less digits than its factorization.

20468252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 20468252 is about 4524.1852305139. The cubic root of 20468252 is about 273.5438268853.

The spelling of 20468252 in words is "twenty million, four hundred sixty-eight thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 23 28 37 46 74 92 148 161 259 322 518 644 851 859 1036 1702 1718 3404 3436 5957 6013 11914 12026 19757 23828 24052 31783 39514 63566 79028 127132 138299 222481 276598 444962 553196 731009 889924 1462018 2924036 5117063 10234126 20468252