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87896319 = 3712732957
BaseRepresentation
bin1010011110100…
…11000011111111
320010101121002020
411033103003333
5140000140234
612415531223
72115051330
oct517230377
9203347066
1087896319
1145684895
1225529b13
1315296574
14b960287
157ab3549
hex53d30ff

87896319 has 16 divisors (see below), whose sum is σ = 134995968. Its totient is φ = 49829472.

The previous prime is 87896309. The next prime is 87896321. The reversal of 87896319 is 91369878.

It is not a de Polignac number, because 87896319 - 213 = 87888127 is a prime.

It is a super-2 number, since 2×878963192 = 15451525787499522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87896309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13812 + ... + 19145.

It is an arithmetic number, because the mean of its divisors is an integer number (8437248).

Almost surely, 287896319 is an apocalyptic number.

87896319 is a deficient number, since it is larger than the sum of its proper divisors (47099649).

87896319 is a wasteful number, since it uses less digits than its factorization.

87896319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33094.

The product of its digits is 653184, while the sum is 51.

The square root of 87896319 is about 9375.3036750817. The cubic root of 87896319 is about 444.6212642527.

The spelling of 87896319 in words is "eighty-seven million, eight hundred ninety-six thousand, three hundred nineteen".

Divisors: 1 3 7 21 127 381 889 2667 32957 98871 230699 692097 4185539 12556617 29298773 87896319