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68839002 = 2329534013
BaseRepresentation
bin1000001101001…
…10011001011010
311210112101100200
410012212121122
5120110322002
610455243030
71464056541
oct406463132
9153471320
1068839002
1135948841
121b079476
131135324b
1491dd158
15609bb1c
hex41a665a

68839002 has 24 divisors (see below), whose sum is σ = 149344884. Its totient is φ = 22916544.

The previous prime is 68838989. The next prime is 68839013. The reversal of 68839002 is 20093886.

It can be written as a sum of positive squares in 2 ways, for example, as 67420521 + 1418481 = 8211^2 + 1191^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15148 + ... + 19160.

Almost surely, 268839002 is an apocalyptic number.

68839002 is an abundant number, since it is smaller than the sum of its proper divisors (80505882).

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

68839002 is a wasteful number, since it uses less digits than its factorization.

68839002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4974 (or 4971 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 68839002 is about 8296.9272625473. The cubic root of 68839002 is about 409.8373378143.

The spelling of 68839002 in words is "sixty-eight million, eight hundred thirty-nine thousand, two".

Divisors: 1 2 3 6 9 18 953 1906 2859 4013 5718 8026 8577 12039 17154 24078 36117 72234 3824389 7648778 11473167 22946334 34419501 68839002