Search a number
-
+
142043430 = 23519249199
BaseRepresentation
bin10000111011101…
…10100100100110
3100220021112221210
420131312210212
5242330342210
622032252250
73343230534
oct1035664446
9326245853
10142043430
11731a8371
123b6a1086
1323574489
1414c17154
15c70be20
hex8776926

142043430 has 32 divisors (see below), whose sum is σ = 358848000. Its totient is φ = 35884512.

The previous prime is 142043413. The next prime is 142043437. The reversal of 142043430 is 34340241.

142043430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 142043397 and 142043406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142043437) 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, 124030 + ... + 125169.

It is an arithmetic number, because the mean of its divisors is an integer number (11214000).

Almost surely, 2142043430 is an apocalyptic number.

142043430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142043430 is an abundant number, since it is smaller than the sum of its proper divisors (216804570).

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

142043430 is a wasteful number, since it uses less digits than its factorization.

142043430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249228.

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

The square root of 142043430 is about 11918.1974308198. The cubic root of 142043430 is about 521.7635267185.

Adding to 142043430 its reverse (34340241), we get a palindrome (176383671).

It can be divided in two parts, 1420 and 43430, that added together give a triangular number (44850 = T299).

The spelling of 142043430 in words is "one hundred forty-two million, forty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 249199 498398 747597 1245995 1495194 2491990 3737985 4734781 7475970 9469562 14204343 23673905 28408686 47347810 71021715 142043430