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87127417 = 1343155863
BaseRepresentation
bin1010011000101…
…11010101111001
320001221112100101
411030113111321
5134301034132
612351235401
72105366536
oct514272571
9201845311
1087127417
11451aa133
1225218b61
13150875b0
14b7ddd8d
1579b07e7
hex5317579

87127417 has 8 divisors (see below), whose sum is σ = 96012224. Its totient is φ = 78554448.

The previous prime is 87127409. The next prime is 87127433. The reversal of 87127417 is 71472178.

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

It is a cyclic number.

It is not a de Polignac number, because 87127417 - 23 = 87127409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87127457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77373 + ... + 78490.

It is an arithmetic number, because the mean of its divisors is an integer number (12001528).

Almost surely, 287127417 is an apocalyptic number.

It is an amenable number.

87127417 is a deficient number, since it is larger than the sum of its proper divisors (8884807).

87127417 is a wasteful number, since it uses less digits than its factorization.

87127417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155919.

The product of its digits is 21952, while the sum is 37.

The square root of 87127417 is about 9334.2068222212. The cubic root of 87127417 is about 443.3209749634.

It can be divided in two parts, 8712 and 7417, that added together give a square (16129 = 1272).

The spelling of 87127417 in words is "eighty-seven million, one hundred twenty-seven thousand, four hundred seventeen".

Divisors: 1 13 43 559 155863 2026219 6702109 87127417