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88102489 = 233830543
BaseRepresentation
bin1010100000001…
…01011001011001
320010210001220011
411100011121121
5140023234424
612424201521
72116600366
oct520053131
9203701804
1088102489
1145805782
12256092a1
1315339367
14b9b546d
157b04694
hex5405659

88102489 has 4 divisors (see below), whose sum is σ = 91933056. Its totient is φ = 84271924.

The previous prime is 88102477. The next prime is 88102501. The reversal of 88102489 is 98420188.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (88102477) and next prime (88102501).

It is a cyclic number.

It is not a de Polignac number, because 88102489 - 25 = 88102457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88102429) 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 3 ways as a sum of consecutive naturals, for example, 1915249 + ... + 1915294.

It is an arithmetic number, because the mean of its divisors is an integer number (22983264).

Almost surely, 288102489 is an apocalyptic number.

It is an amenable number.

88102489 is a deficient number, since it is larger than the sum of its proper divisors (3830567).

88102489 is a wasteful number, since it uses less digits than its factorization.

88102489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830566.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 88102489 is about 9386.2926121020. The cubic root of 88102489 is about 444.9686280118.

The spelling of 88102489 in words is "eighty-eight million, one hundred two thousand, four hundred eighty-nine".

Divisors: 1 23 3830543 88102489