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88130939 = 136779303
BaseRepresentation
bin1010100000011…
…00010101111011
320010211111220212
411100030111323
5140030142224
612424541335
72120046341
oct520142573
9203744825
1088130939
1145825096
122562184b
13153492b0
14b9c1991
157b0cd0e
hex540c57b

88130939 has 4 divisors (see below), whose sum is σ = 94910256. Its totient is φ = 81351624.

The previous prime is 88130927. The next prime is 88130953. The reversal of 88130939 is 93903188.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-88130939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88130896 and 88130905.

It is not an unprimeable number, because it can be changed into a prime (88130989) 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 3 ways as a sum of consecutive naturals, for example, 3389639 + ... + 3389664.

It is an arithmetic number, because the mean of its divisors is an integer number (23727564).

Almost surely, 288130939 is an apocalyptic number.

88130939 is a deficient number, since it is larger than the sum of its proper divisors (6779317).

88130939 is a wasteful number, since it uses less digits than its factorization.

88130939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6779316.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 88130939 is about 9387.8079976105. The cubic root of 88130939 is about 445.0165191865.

The spelling of 88130939 in words is "eighty-eight million, one hundred thirty thousand, nine hundred thirty-nine".

Divisors: 1 13 6779303 88130939