Search a number
-
+
383890061 = 1394496151
BaseRepresentation
bin10110111000011…
…011001010001101
3222202100122011102
4112320123022031
51241233440221
6102032032445
712341004002
oct2670331215
9882318142
10383890061
11187772315
12a8692725
13616c09a9
1438dad8a9
1523a8030b
hex16e1b28d

383890061 has 8 divisors (see below), whose sum is σ = 387576000. Its totient is φ = 380217600.

The previous prime is 383890057. The next prime is 383890063. The reversal of 383890061 is 160098383.

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

It is a cyclic number.

It is not a de Polignac number, because 383890061 - 22 = 383890057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 383889997 and 383890024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383890063) 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, 59336 + ... + 65486.

It is an arithmetic number, because the mean of its divisors is an integer number (48447000).

Almost surely, 2383890061 is an apocalyptic number.

It is an amenable number.

383890061 is a deficient number, since it is larger than the sum of its proper divisors (3685939).

383890061 is a wasteful number, since it uses less digits than its factorization.

383890061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6739.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 383890061 is about 19593.1125909081. The cubic root of 383890061 is about 726.7788650881.

The spelling of 383890061 in words is "three hundred eighty-three million, eight hundred ninety thousand, sixty-one".

Divisors: 1 139 449 6151 62411 854989 2761799 383890061