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30314040 = 2335252617
BaseRepresentation
bin111001110100…
…0111000111000
32010001010001020
41303220320320
530230022130
63001422440
7515444061
oct163507070
963033036
1030314040
1116125429
12a19aa20
136384c03
144051568
1529dbe10
hex1ce8e38

30314040 has 32 divisors (see below), whose sum is σ = 90942480. Its totient is φ = 8083712.

The previous prime is 30314027. The next prime is 30314041. The reversal of 30314040 is 4041303.

30314040 is nontrivially palindromic in base 9.

It is a super-2 number, since 2×303140402 = 1837882042243200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30314041) 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, 126189 + ... + 126428.

Almost surely, 230314040 is an apocalyptic number.

30314040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30314040 is an abundant number, since it is smaller than the sum of its proper divisors (60628440).

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

30314040 is a wasteful number, since it uses less digits than its factorization.

30314040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252631 (or 252627 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30314040 is about 5505.8187402057. The cubic root of 30314040 is about 311.8037062456.

Adding to 30314040 its reverse (4041303), we get a palindrome (34355343).

The spelling of 30314040 in words is "thirty million, three hundred fourteen thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 252617 505234 757851 1010468 1263085 1515702 2020936 2526170 3031404 3789255 5052340 6062808 7578510 10104680 15157020 30314040