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130023211 = 2914930091
BaseRepresentation
bin1111011111111…
…11111100101011
3100001122212022111
413233333330223
5231241220321
620522503151
73136115263
oct757777453
9301585274
10130023211
11674383aa
1237664ab7
1320c26216
14133a87a3
15b6355e1
hex7bfff2b

130023211 has 8 divisors (see below), whose sum is σ = 135414000. Its totient is φ = 124692960.

The previous prime is 130023203. The next prime is 130023221. The reversal of 130023211 is 112320031.

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

It is a cyclic number.

It is not a de Polignac number, because 130023211 - 23 = 130023203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130023191 and 130023200.

It is not an unprimeable number, because it can be changed into a prime (130023221) 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, 10725 + ... + 19366.

It is an arithmetic number, because the mean of its divisors is an integer number (16926750).

Almost surely, 2130023211 is an apocalyptic number.

130023211 is a deficient number, since it is larger than the sum of its proper divisors (5390789).

130023211 is a wasteful number, since it uses less digits than its factorization.

130023211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30269.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 130023211 is about 11402.7720752456. The cubic root of 130023211 is about 506.6098494017.

Adding to 130023211 its reverse (112320031), we get a palindrome (242343242).

The spelling of 130023211 in words is "one hundred thirty million, twenty-three thousand, two hundred eleven".

Divisors: 1 29 149 4321 30091 872639 4483559 130023211