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87374207 = 353247519
BaseRepresentation
bin1010011010100…
…11100101111111
320002102001212202
411031103211333
5134331433312
612400422115
72110445204
oct515234577
9202361782
1087374207
1145358598
122531793b
1315142a1b
14b865cab
157a0d9c2
hex535397f

87374207 has 4 divisors (see below), whose sum is σ = 87622080. Its totient is φ = 87126336.

The previous prime is 87374153. The next prime is 87374227. The reversal of 87374207 is 70247378.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87374207 - 222 = 83179903 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 (87374227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123407 + ... + 124112.

It is an arithmetic number, because the mean of its divisors is an integer number (21905520).

Almost surely, 287374207 is an apocalyptic number.

87374207 is a deficient number, since it is larger than the sum of its proper divisors (247873).

87374207 is a wasteful number, since it uses less digits than its factorization.

87374207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247872.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 87374207 is about 9347.4171298814. The cubic root of 87374207 is about 443.7391519665.

The spelling of 87374207 in words is "eighty-seven million, three hundred seventy-four thousand, two hundred seven".

Divisors: 1 353 247519 87374207