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9005381 = 711116953
BaseRepresentation
bin100010010110…
…100101000101
3121221112001122
4202112211011
54301133011
6521003325
7136354520
oct42264505
917845048
109005381
1150a0970
123023545
131b33c38
1412a5bb7
15bcd3db
hex896945

9005381 has 8 divisors (see below), whose sum is σ = 11227584. Its totient is φ = 7017120.

The previous prime is 9005371. The next prime is 9005387. The reversal of 9005381 is 1835009.

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

It is not a de Polignac number, because 9005381 - 214 = 8988997 is a prime.

It is a super-2 number, since 2×90053812 = 162193773910322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9005381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9005387) 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, 58400 + ... + 58553.

It is an arithmetic number, because the mean of its divisors is an integer number (1403448).

Almost surely, 29005381 is an apocalyptic number.

It is an amenable number.

9005381 is a deficient number, since it is larger than the sum of its proper divisors (2222203).

9005381 is a wasteful number, since it uses less digits than its factorization.

9005381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116971.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 9005381 is about 3000.8966993217. The cubic root of 9005381 is about 208.0498293462.

The spelling of 9005381 in words is "nine million, five thousand, three hundred eighty-one".

Divisors: 1 7 11 77 116953 818671 1286483 9005381