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87468943 = 346725229
BaseRepresentation
bin1010011011010…
…10101110001111
320002120212211111
411031222232033
5134343001233
612402432451
72111321332
oct515525617
9202525744
1087468943
1145412791
1225362727
1315176b93
14b88c619
157a2bacd
hex536ab8f

87468943 has 4 divisors (see below), whose sum is σ = 87497640. Its totient is φ = 87440248.

The previous prime is 87468911. The next prime is 87468967. The reversal of 87468943 is 34986478.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34986478 = 217493239.

It is a cyclic number.

It is not a de Polignac number, because 87468943 - 25 = 87468911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87468443) 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, 9148 + ... + 16081.

It is an arithmetic number, because the mean of its divisors is an integer number (21874410).

Almost surely, 287468943 is an apocalyptic number.

87468943 is a deficient number, since it is larger than the sum of its proper divisors (28697).

87468943 is a wasteful number, since it uses less digits than its factorization.

87468943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28696.

The product of its digits is 1161216, while the sum is 49.

The square root of 87468943 is about 9352.4832531259. The cubic root of 87468943 is about 443.8994696375.

It can be divided in two parts, 8746 and 8943, that added together give a square (17689 = 1332).

The spelling of 87468943 in words is "eighty-seven million, four hundred sixty-eight thousand, nine hundred forty-three".

Divisors: 1 3467 25229 87468943