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130021342 = 21121132797
BaseRepresentation
bin1111011111111…
…11011111011110
3100001122202202021
413233333133132
5231241140332
620522450354
73136106653
oct757773736
9301582667
10130021342
1167436a60
12376639ba
1320c25409
14133a7c2a
15b634c97
hex7bff7de

130021342 has 16 divisors (see below), whose sum is σ = 212938992. Its totient is φ = 59051520.

The previous prime is 130021337. The next prime is 130021361. The reversal of 130021342 is 243120031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45088 + ... + 47884.

It is an arithmetic number, because the mean of its divisors is an integer number (13308687).

Almost surely, 2130021342 is an apocalyptic number.

130021342 is a deficient number, since it is larger than the sum of its proper divisors (82917650).

130021342 is a wasteful number, since it uses less digits than its factorization.

130021342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4923.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 130021342 is about 11402.6901211951. The cubic root of 130021342 is about 506.6074219932.

Adding to 130021342 its reverse (243120031), we get a palindrome (373141373).

The spelling of 130021342 in words is "one hundred thirty million, twenty-one thousand, three hundred forty-two".

Divisors: 1 2 11 22 2113 2797 4226 5594 23243 30767 46486 61534 5910061 11820122 65010671 130021342