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87742326 = 2374744449
BaseRepresentation
bin1010011101011…
…01011101110110
320010002202211210
411032231131312
5134430223301
612412342250
72113540350
oct516553566
9203082753
1087742326
114558a121
1225474986
1315241449
14b9200d0
157a82ad6
hex53ad776

87742326 has 32 divisors (see below), whose sum is σ = 204825600. Its totient is φ = 24535296.

The previous prime is 87742289. The next prime is 87742327. The reversal of 87742326 is 62324778.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87742327) 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, 20251 + ... + 24198.

It is an arithmetic number, because the mean of its divisors is an integer number (6400800).

Almost surely, 287742326 is an apocalyptic number.

87742326 is an abundant number, since it is smaller than the sum of its proper divisors (117083274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87742326 is a wasteful number, since it uses less digits than its factorization.

87742326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44508.

The product of its digits is 112896, while the sum is 39.

The square root of 87742326 is about 9367.0873808244. The cubic root of 87742326 is about 444.3614559263.

The spelling of 87742326 in words is "eighty-seven million, seven hundred forty-two thousand, three hundred twenty-six".

Divisors: 1 2 3 6 7 14 21 42 47 94 141 282 329 658 987 1974 44449 88898 133347 266694 311143 622286 933429 1866858 2089103 4178206 6267309 12534618 14623721 29247442 43871163 87742326