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87424338 = 2322516473
BaseRepresentation
bin1010011010111…
…11110101010010
320002111121122110
411031133311102
5134340034323
612401450150
72111044311
oct515376522
9202447573
1087424338
1145392221
1225340956
131515c7a1
14b87a278
157a1d793
hex535fd52

87424338 has 16 divisors (see below), whose sum is σ = 174953376. Its totient is φ = 29124000.

The previous prime is 87424331. The next prime is 87424361. The reversal of 87424338 is 83342478.

It is a junction number, because it is equal to n+sod(n) for n = 87424296 and 87424305.

It is not an unprimeable number, because it can be changed into a prime (87424331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10270 + ... + 16742.

It is an arithmetic number, because the mean of its divisors is an integer number (10934586).

Almost surely, 287424338 is an apocalyptic number.

87424338 is an abundant number, since it is smaller than the sum of its proper divisors (87529038).

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

87424338 is a wasteful number, since it uses less digits than its factorization.

87424338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8729.

The product of its digits is 129024, while the sum is 39.

The square root of 87424338 is about 9350.0982882534. The cubic root of 87424338 is about 443.8240009365.

The spelling of 87424338 in words is "eighty-seven million, four hundred twenty-four thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 2251 4502 6473 6753 12946 13506 19419 38838 14570723 29141446 43712169 87424338