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87465056478 = 2314577509413
BaseRepresentation
bin101000101110101010…
…0101101100011011110
322100202120221020100020
41101131110231203132
52413112023301403
6104103023413010
76214315466442
oct1213524554336
9270676836306
1087465056478
1134103820548
1214b4ba54166
13832b8a99b7
14433a392822
15241da4c453
hex145d52d8de

87465056478 has 8 divisors (see below), whose sum is σ = 174930112968. Its totient is φ = 29155018824.

The previous prime is 87465056473. The next prime is 87465056527.

87465056478 is nontrivially palindromic in base 10.

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

87465056478 is an admirable number.

It is a super-2 number, since 2×874650564782 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87465056473) 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, 7288754701 + ... + 7288754712.

It is an arithmetic number, because the mean of its divisors is an integer number (21866264121).

Almost surely, 287465056478 is an apocalyptic number.

87465056478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87465056478 is a wasteful number, since it uses less digits than its factorization.

87465056478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14577509418.

The product of its (nonzero) digits is 45158400, while the sum is 60.

The spelling of 87465056478 in words is "eighty-seven billion, four hundred sixty-five million, fifty-six thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 14577509413 29155018826 43732528239 87465056478