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87458342 = 289491339
BaseRepresentation
bin1010011011010…
…00001000100110
320002120100021212
411031220020212
5134342131332
612402311422
72111245406
oct515501046
9202510255
1087458342
1145405824
1225358572
13151720ca
14b888806
157a288b2
hex5368226

87458342 has 8 divisors (see below), whose sum is σ = 132661800. Its totient is φ = 43237744.

The previous prime is 87458339. The next prime is 87458363. The reversal of 87458342 is 24385478.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 87458342.

It is a congruent number.

It is an unprimeable number.

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, 245492 + ... + 245847.

It is an arithmetic number, because the mean of its divisors is an integer number (16582725).

Almost surely, 287458342 is an apocalyptic number.

87458342 is a deficient number, since it is larger than the sum of its proper divisors (45203458).

87458342 is a wasteful number, since it uses less digits than its factorization.

87458342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491430.

The product of its digits is 215040, while the sum is 41.

The square root of 87458342 is about 9351.9164880788. The cubic root of 87458342 is about 443.8815357734.

The spelling of 87458342 in words is "eighty-seven million, four hundred fifty-eight thousand, three hundred forty-two".

Divisors: 1 2 89 178 491339 982678 43729171 87458342