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9020381 = 47281683
BaseRepresentation
bin100010011010…
…001111011101
3121222021122012
4202122033131
54302123011
6521201005
7136446326
oct42321735
917867565
109020381
115101167
123030165
131b3aa06
1412ab44d
15bd2a8b
hex89a3dd

9020381 has 8 divisors (see below), whose sum is σ = 9258624. Its totient is φ = 8784160.

The previous prime is 9020371. The next prime is 9020413. The reversal of 9020381 is 1830209.

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 9020381 - 26 = 9020317 is a prime.

It is a super-2 number, since 2×90203812 = 162734546770322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9020371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12866 + ... + 13548.

It is an arithmetic number, because the mean of its divisors is an integer number (1157328).

Almost surely, 29020381 is an apocalyptic number.

It is an amenable number.

9020381 is a deficient number, since it is larger than the sum of its proper divisors (238243).

9020381 is a wasteful number, since it uses less digits than its factorization.

9020381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 9020381 is about 3003.3949124283. The cubic root of 9020381 is about 208.1652794432.

The spelling of 9020381 in words is "nine million, twenty thousand, three hundred eighty-one".

Divisors: 1 47 281 683 13207 32101 191923 9020381