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87480243 = 351572293
BaseRepresentation
bin1010011011011…
…01011110110011
320002121110100000
411031231132303
5134343331433
612403001043
72111366304
oct515553663
9202543300
1087480243
1145420224
1225369183
131517c076
14b8927ab
157a30113
hex536d7b3

87480243 has 24 divisors (see below), whose sum is σ = 131932528. Its totient is φ = 57923424.

The previous prime is 87480229. The next prime is 87480299. The reversal of 87480243 is 34208478.

It is not a de Polignac number, because 87480243 - 24 = 87480227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87480198 and 87480207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87480203) 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 23 ways as a sum of consecutive naturals, for example, 37005 + ... + 39297.

Almost surely, 287480243 is an apocalyptic number.

87480243 is a deficient number, since it is larger than the sum of its proper divisors (44452285).

87480243 is a wasteful number, since it uses less digits than its factorization.

87480243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 87480243 is about 9353.0873512440. The cubic root of 87480243 is about 443.9185844144.

The spelling of 87480243 in words is "eighty-seven million, four hundred eighty thousand, two hundred forty-three".

Divisors: 1 3 9 27 81 157 243 471 1413 2293 4239 6879 12717 20637 38151 61911 185733 360001 557199 1080003 3240009 9720027 29160081 87480243