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130031222 = 2425315287
BaseRepresentation
bin1111100000000…
…01111001110110
3100001200021022012
413300001321312
5231241444342
620523004222
73136150526
oct760017166
9301607265
10130031222
1167443422
1237669672
1320c29a69
14133ab686
15b637b82
hex7c01e76

130031222 has 8 divisors (see below), whose sum is σ = 195105456. Its totient is φ = 64996072.

The previous prime is 130031197. The next prime is 130031233. The reversal of 130031222 is 222130031.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 130031197 and 130031206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863 + ... + 16149.

It is an arithmetic number, because the mean of its divisors is an integer number (24388182).

Almost surely, 2130031222 is an apocalyptic number.

130031222 is a deficient number, since it is larger than the sum of its proper divisors (65074234).

130031222 is a wasteful number, since it uses less digits than its factorization.

130031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19542.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 130031222 is about 11403.1233440667. The cubic root of 130031222 is about 506.6202536163.

Adding to 130031222 its reverse (222130031), we get a palindrome (352161253).

It can be divided in two parts, 130031 and 222, that multiplied together give a palindrome (28866882).

The spelling of 130031222 in words is "one hundred thirty million, thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 4253 8506 15287 30574 65015611 130031222