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87340037 = 547159671
BaseRepresentation
bin1010011010010…
…11010000000101
320002100100000012
411031023100011
5134324340122
612400000005
72110243451
oct515132005
9202310005
1087340037
1145334954
1225300005
13151302c5
14b857661
157a037e2
hex534b405

87340037 has 4 divisors (see below), whose sum is σ = 87500256. Its totient is φ = 87179820.

The previous prime is 87340031. The next prime is 87340063. The reversal of 87340037 is 73004378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87340037 - 216 = 87274501 is a prime.

It is a super-2 number, since 2×873400372 = 15256564126322738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87339985 and 87340012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87340031) by changing a digit.

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, 79289 + ... + 80382.

It is an arithmetic number, because the mean of its divisors is an integer number (21875064).

Almost surely, 287340037 is an apocalyptic number.

It is an amenable number.

87340037 is a deficient number, since it is larger than the sum of its proper divisors (160219).

87340037 is a wasteful number, since it uses less digits than its factorization.

87340037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160218.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 87340037 is about 9345.5891735085. The cubic root of 87340037 is about 443.6812991045.

The spelling of 87340037 in words is "eighty-seven million, three hundred forty thousand, thirty-seven".

Divisors: 1 547 159671 87340037