Search a number
-
+
130031342 = 2714936221
BaseRepresentation
bin1111100000000…
…01111011101110
3100001200021110122
413300001323232
5231242000332
620523004542
73136151060
oct760017356
9301607418
10130031342
1167443521
1237669752
1320c29b2c
14133ab730
15b637c12
hex7c01eee

130031342 has 16 divisors (see below), whose sum is σ = 223096032. Its totient is φ = 55681440.

The previous prime is 130031333. The next prime is 130031381. The reversal of 130031342 is 243130031.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 130031342.

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, 17792 + ... + 24012.

It is an arithmetic number, because the mean of its divisors is an integer number (13943502).

Almost surely, 2130031342 is an apocalyptic number.

130031342 is a deficient number, since it is larger than the sum of its proper divisors (93064690).

130031342 is a wasteful number, since it uses less digits than its factorization.

130031342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 130031342 is about 11403.1286057818. The cubic root of 130031342 is about 506.6204094620.

Adding to 130031342 its reverse (243130031), we get a palindrome (373161373).

The spelling of 130031342 in words is "one hundred thirty million, thirty-one thousand, three hundred forty-two".

Divisors: 1 2 7 14 1493 2986 6221 10451 12442 20902 43547 87094 9287953 18575906 65015671 130031342