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87247338 = 2314541223
BaseRepresentation
bin1010011001101…
…00100111101010
320002011121211220
411030310213222
5134313403323
612354002510
72106406263
oct514644752
9202147756
1087247338
1145281242
1225276436
13150ca059
14b83196a
1579d60e3
hex53349ea

87247338 has 8 divisors (see below), whose sum is σ = 174494688. Its totient is φ = 29082444.

The previous prime is 87247331. The next prime is 87247339. The reversal of 87247338 is 83374278.

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

87247338 is an admirable number.

It is a super-2 number, since 2×872473382 = 15224195976172488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87247338.

It is not an unprimeable number, because it can be changed into a prime (87247331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7270606 + ... + 7270617.

It is an arithmetic number, because the mean of its divisors is an integer number (21811836).

Almost surely, 287247338 is an apocalyptic number.

87247338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87247338 is a wasteful number, since it uses less digits than its factorization.

87247338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14541228.

The product of its digits is 225792, while the sum is 42.

The square root of 87247338 is about 9340.6283514547. The cubic root of 87247338 is about 443.5242753861.

The spelling of 87247338 in words is "eighty-seven million, two hundred forty-seven thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 14541223 29082446 43623669 87247338