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88215252 = 223193710457
BaseRepresentation
bin1010100001000…
…00111011010100
320010222210120120
411100200323110
5140040342002
612430431540
72120550216
oct520407324
9203883516
1088215252
1145882474
12256625b0
1315378798
14ba045b6
157b27cbc
hex5420ed4

88215252 has 48 divisors (see below), whose sum is σ = 222546240. Its totient is φ = 27101952.

The previous prime is 88215247. The next prime is 88215311. The reversal of 88215252 is 25251288.

It is a congruent number.

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, 3208 + ... + 13664.

It is an arithmetic number, because the mean of its divisors is an integer number (4636380).

Almost surely, 288215252 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 88215252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111273120).

88215252 is an abundant number, since it is smaller than the sum of its proper divisors (134330988).

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

88215252 is a wasteful number, since it uses less digits than its factorization.

88215252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10520 (or 10518 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 88215252 is about 9392.2974825119. The cubic root of 88215252 is about 445.1583865771.

The spelling of 88215252 in words is "eighty-eight million, two hundred fifteen thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 19 37 38 57 74 76 111 114 148 222 228 444 703 1406 2109 2812 4218 8436 10457 20914 31371 41828 62742 125484 198683 386909 397366 596049 773818 794732 1160727 1192098 1547636 2321454 2384196 4642908 7351271 14702542 22053813 29405084 44107626 88215252