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87096971 = 136699767
BaseRepresentation
bin1010011000011…
…11111010001011
320001212222120202
411030033322023
5134244100341
612350442415
72105212013
oct514177213
9201788522
1087096971
1145189275
122520340b
1315076790
14b7d2c43
1579a679b
hex530fe8b

87096971 has 4 divisors (see below), whose sum is σ = 93796752. Its totient is φ = 80397192.

The previous prime is 87096953. The next prime is 87096991. The reversal of 87096971 is 17969078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17969078 = 28984539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-87096971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87096941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3349871 + ... + 3349896.

It is an arithmetic number, because the mean of its divisors is an integer number (23449188).

Almost surely, 287096971 is an apocalyptic number.

87096971 is a deficient number, since it is larger than the sum of its proper divisors (6699781).

87096971 is a wasteful number, since it uses less digits than its factorization.

87096971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699780.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 87096971 is about 9332.5757966384. The cubic root of 87096971 is about 443.2693305888.

The spelling of 87096971 in words is "eighty-seven million, ninety-six thousand, nine hundred seventy-one".

Divisors: 1 13 6699767 87096971