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390013 = 13191579
BaseRepresentation
bin1011111001101111101
3201210222221
41133031331
544440023
612205341
73213031
oct1371575
9653887
10390013
11247028
12169851
131086a0
14a21c1
157a85d
hex5f37d

390013 has 8 divisors (see below), whose sum is σ = 442400. Its totient is φ = 340848.

The previous prime is 390001. The next prime is 390043. The reversal of 390013 is 310093.

It is a happy number.

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 390013 - 25 = 389981 is a prime.

It is a super-2 number, since 2×3900132 = 304220280338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390043) 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, 543 + ... + 1036.

It is an arithmetic number, because the mean of its divisors is an integer number (55300).

2390013 is an apocalyptic number.

It is an amenable number.

390013 is a deficient number, since it is larger than the sum of its proper divisors (52387).

390013 is a wasteful number, since it uses less digits than its factorization.

390013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 390013 is about 624.5102080831. The cubic root of 390013 is about 73.0622475253.

The spelling of 390013 in words is "three hundred ninety thousand, thirteen".

Divisors: 1 13 19 247 1579 20527 30001 390013