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30314142 = 233561373
BaseRepresentation
bin111001110100…
…0111010011110
32010001010012000
41303220322132
530230023032
63001423130
7515444265
oct163507236
963033160
1030314142
1116125511
12a19aaa6
136384c81
1440515dc
1529dbe7c
hex1ce8e9e

30314142 has 16 divisors (see below), whose sum is σ = 67364880. Its totient is φ = 10104696.

The previous prime is 30314113. The next prime is 30314189. The reversal of 30314142 is 24141303.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 280633 + ... + 280740.

It is an arithmetic number, because the mean of its divisors is an integer number (4210305).

Almost surely, 230314142 is an apocalyptic number.

30314142 is an abundant number, since it is smaller than the sum of its proper divisors (37050738).

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

30314142 is a wasteful number, since it uses less digits than its factorization.

30314142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561384 (or 561378 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30314142 is about 5505.8280031254. The cubic root of 30314142 is about 311.8040559619.

Adding to 30314142 its reverse (24141303), we get a palindrome (54455445).

The spelling of 30314142 in words is "thirty million, three hundred fourteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 561373 1122746 1684119 3368238 5052357 10104714 15157071 30314142