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88135212 = 22311667691
BaseRepresentation
bin1010100000011…
…01011000101100
320010211201210010
411100031120230
5140030311322
612425013220
72120064654
oct520153054
9203751703
1088135212
1145828320
1225624210
131534b219
14b9c3364
157b0e20c
hex540d62c

88135212 has 24 divisors (see below), whose sum is σ = 224344512. Its totient is φ = 26707600.

The previous prime is 88135207. The next prime is 88135213. The reversal of 88135212 is 21253188.

It is a self number, because there is not a number n which added to its sum of digits gives 88135212.

It is not an unprimeable number, because it can be changed into a prime (88135213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 333714 + ... + 333977.

It is an arithmetic number, because the mean of its divisors is an integer number (9347688).

Almost surely, 288135212 is an apocalyptic number.

It is an amenable number.

88135212 is an abundant number, since it is smaller than the sum of its proper divisors (136209300).

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

88135212 is a wasteful number, since it uses less digits than its factorization.

88135212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667709 (or 667707 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 88135212 is about 9388.0355772654. The cubic root of 88135212 is about 445.0237112308.

The spelling of 88135212 in words is "eighty-eight million, one hundred thirty-five thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 667691 1335382 2003073 2670764 4006146 7344601 8012292 14689202 22033803 29378404 44067606 88135212