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40830 = 2351361
BaseRepresentation
bin1001111101111110
32002000020
421331332
52301310
6513010
7230016
oct117576
962006
1040830
1128749
121b766
131577a
1410c46
15c170
hex9f7e

40830 has 16 divisors (see below), whose sum is σ = 98064. Its totient is φ = 10880.

The previous prime is 40829. The next prime is 40841. The reversal of 40830 is 3804.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651 + ... + 710.

It is an arithmetic number, because the mean of its divisors is an integer number (6129).

240830 is an apocalyptic number.

40830 is an abundant number, since it is smaller than the sum of its proper divisors (57234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49032).

40830 is a wasteful number, since it uses less digits than its factorization.

40830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40830 is about 202.0643461871. The cubic root of 40830 is about 34.4344480954.

The spelling of 40830 in words is "forty thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1361 2722 4083 6805 8166 13610 20415 40830