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88785213 = 31141211311
BaseRepresentation
bin1010100101011…
…00000100111101
320012001202102020
411102230010331
5140212111323
612450550353
72125443006
oct522540475
9205052366
1088785213
1146131710
12258983b9
131551803a
14bb121ad
157bdbae3
hex54ac13d

88785213 has 32 divisors (see below), whose sum is σ = 133346304. Its totient is φ = 52080000.

The previous prime is 88785197. The next prime is 88785217. The reversal of 88785213 is 31258788.

It is a happy number.

It is not a de Polignac number, because 88785213 - 24 = 88785197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88785217) 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, 285328 + ... + 285638.

It is an arithmetic number, because the mean of its divisors is an integer number (4167072).

Almost surely, 288785213 is an apocalyptic number.

It is an amenable number.

88785213 is a deficient number, since it is larger than the sum of its proper divisors (44561091).

88785213 is a wasteful number, since it uses less digits than its factorization.

88785213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577.

The product of its digits is 107520, while the sum is 42.

The square root of 88785213 is about 9422.5905673546. The cubic root of 88785213 is about 446.1150557459.

The spelling of 88785213 in words is "eighty-eight million, seven hundred eighty-five thousand, two hundred thirteen".

Divisors: 1 3 11 33 41 123 211 311 451 633 933 1353 2321 3421 6963 8651 10263 12751 25953 38253 65621 95161 140261 196863 285483 420783 721831 2165493 2690461 8071383 29595071 88785213