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63128942 = 2263120017
BaseRepresentation
bin1111000011010…
…0010101101110
311101210021121222
43300310111232
5112130111232
610133023342
71364405252
oct360642556
9141707558
1063128942
11326a8788
1219184b52
1310104206
148554262
15581ed12
hex3c3456e

63128942 has 8 divisors (see below), whose sum is σ = 95054256. Its totient is φ = 31444192.

The previous prime is 63128929. The next prime is 63128953. The reversal of 63128942 is 24982136.

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

It is a congruent number.

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, 59483 + ... + 60534.

It is an arithmetic number, because the mean of its divisors is an integer number (11881782).

Almost surely, 263128942 is an apocalyptic number.

63128942 is a deficient number, since it is larger than the sum of its proper divisors (31925314).

63128942 is a wasteful number, since it uses less digits than its factorization.

63128942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120282.

The product of its digits is 20736, while the sum is 35.

The square root of 63128942 is about 7945.3723638354. The cubic root of 63128942 is about 398.1770001338.

The spelling of 63128942 in words is "sixty-three million, one hundred twenty-eight thousand, nine hundred forty-two".

Divisors: 1 2 263 526 120017 240034 31564471 63128942