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87354103 = 216140423
BaseRepresentation
bin1010011010011…
…10101011110111
320002101001022011
411031032223313
5134330312403
612400145051
72110332454
oct515165367
9202331264
1087354103
1145344481
1225308187
1315136825
14b85c82b
157a07a6d
hex534eaf7

87354103 has 4 divisors (see below), whose sum is σ = 87396688. Its totient is φ = 87311520.

The previous prime is 87354089. The next prime is 87354227. The reversal of 87354103 is 30145378.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30145378 = 215072689.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-87354103 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 (87354503) 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, 18051 + ... + 22372.

It is an arithmetic number, because the mean of its divisors is an integer number (21849172).

Almost surely, 287354103 is an apocalyptic number.

87354103 is a deficient number, since it is larger than the sum of its proper divisors (42585).

87354103 is a wasteful number, since it uses less digits than its factorization.

87354103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42584.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 87354103 is about 9346.3416907365. The cubic root of 87354103 is about 443.7051159258.

The spelling of 87354103 in words is "eighty-seven million, three hundred fifty-four thousand, one hundred three".

Divisors: 1 2161 40423 87354103