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142434030 = 2356777013
BaseRepresentation
bin10000111110101…
…01111011101110
3100221000101202110
420133111323232
5242430342110
622044504450
73346445364
oct1037257356
9327011673
10142434030
1173444882
123b84b126
13236801bb
1414cb9634
15c787a20
hex87d5eee

142434030 has 32 divisors (see below), whose sum is σ = 342395424. Its totient is φ = 37920896.

The previous prime is 142433971. The next prime is 142434031. The reversal of 142434030 is 30434241.

It is a junction number, because it is equal to n+sod(n) for n = 142433988 and 142434006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142434031) 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, 16804 + ... + 23816.

It is an arithmetic number, because the mean of its divisors is an integer number (10699857).

Almost surely, 2142434030 is an apocalyptic number.

142434030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142434030 is an abundant number, since it is smaller than the sum of its proper divisors (199961394).

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

142434030 is a wasteful number, since it uses less digits than its factorization.

142434030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7700.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 142434030 is about 11934.5728872046. The cubic root of 142434030 is about 522.2413484436.

Adding to 142434030 its reverse (30434241), we get a palindrome (172868271).

The spelling of 142434030 in words is "one hundred forty-two million, four hundred thirty-four thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 677 1354 2031 3385 4062 6770 7013 10155 14026 20310 21039 35065 42078 70130 105195 210390 4747801 9495602 14243403 23739005 28486806 47478010 71217015 142434030