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387002842 = 2691280031
BaseRepresentation
bin10111000100010…
…011000111011010
3222222012210002121
4113010103013122
51243033042332
6102222451454
712406320112
oct2704230732
9888183077
10387002842
111894a8a66
12a9733b8a
1362240785
1439580042
1523e97797
hex171131da

387002842 has 8 divisors (see below), whose sum is σ = 581346432. Its totient is φ = 193220700.

The previous prime is 387002839. The next prime is 387002879. The reversal of 387002842 is 248200783.

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

It is a junction number, because it is equal to n+sod(n) for n = 387002798 and 387002807.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138634 + ... + 141397.

It is an arithmetic number, because the mean of its divisors is an integer number (72668304).

Almost surely, 2387002842 is an apocalyptic number.

387002842 is a deficient number, since it is larger than the sum of its proper divisors (194343590).

387002842 is a wasteful number, since it uses less digits than its factorization.

387002842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280724.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 387002842 is about 19672.3878062629. The cubic root of 387002842 is about 728.7379469736.

The spelling of 387002842 in words is "three hundred eighty-seven million, two thousand, eight hundred forty-two".

Divisors: 1 2 691 1382 280031 560062 193501421 387002842