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142330430 = 25114330091
BaseRepresentation
bin10000111101111…
…00101000111110
3100220211010122102
420132330220332
5242414033210
622042345102
73345534344
oct1036745076
9326733572
10142330430
1173383a60
123b7bb192
1323644cb8
1414c8d994
15c766ea5
hex87bca3e

142330430 has 32 divisors (see below), whose sum is σ = 285994368. Its totient is φ = 50551200.

The previous prime is 142330421. The next prime is 142330439. The reversal of 142330430 is 34033241.

142330430 = 942 + 952 + ... + 7532.

142330430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142330421) and next prime (142330439).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142330439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10316 + ... + 19775.

It is an arithmetic number, because the mean of its divisors is an integer number (8937324).

Almost surely, 2142330430 is an apocalyptic number.

142330430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142330430 is an abundant number, since it is smaller than the sum of its proper divisors (143663938).

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

142330430 is a wasteful number, since it uses less digits than its factorization.

142330430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30152.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 142330430 is about 11930.2317663992. The cubic root of 142330430 is about 522.1146995741.

Adding to 142330430 its reverse (34033241), we get a palindrome (176363671).

The spelling of 142330430 in words is "one hundred forty-two million, three hundred thirty thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 43 55 86 110 215 430 473 946 2365 4730 30091 60182 150455 300910 331001 662002 1293913 1655005 2587826 3310010 6469565 12939130 14233043 28466086 71165215 142330430