Search a number
-
+
142830969 = 3330114423
BaseRepresentation
bin10001000001101…
…10110101111001
3100221202120020220
420200312311321
5243031042334
622101210253
73353020551
oct1040666571
9327676226
10142830969
1173696026
123ba00989
132378ba88
1414d80161
15c815449
hex8836d79

142830969 has 8 divisors (see below), whose sum is σ = 190512192. Its totient is φ = 95185200.

The previous prime is 142830967. The next prime is 142830971. The reversal of 142830969 is 969038241.

142830969 is digitally balanced in base 2, 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 (142830967) and next prime (142830971).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142830969 - 21 = 142830967 is a prime.

It is a super-2 number, since 2×1428309692 = 40801371410957922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142830969.

It is not an unprimeable number, because it can be changed into a prime (142830967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2692 + ... + 17114.

It is an arithmetic number, because the mean of its divisors is an integer number (23814024).

Almost surely, 2142830969 is an apocalyptic number.

It is an amenable number.

142830969 is a deficient number, since it is larger than the sum of its proper divisors (47681223).

142830969 is a wasteful number, since it uses less digits than its factorization.

142830969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17727.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 142830969 is about 11951.1911121863. The cubic root of 142830969 is about 522.7260305764.

The spelling of 142830969 in words is "one hundred forty-two million, eight hundred thirty thousand, nine hundred sixty-nine".

Divisors: 1 3 3301 9903 14423 43269 47610323 142830969