Base | Representation |
---|---|
bin | 1111100111011… |
… | …00000100000010 |
3 | 100010110222222000 |
4 | 13303230010002 |
5 | 232013142323 |
6 | 20555324430 |
7 | 3150254013 |
oct | 763540402 |
9 | 303428860 |
10 | 130990338 |
11 | 67a38a86 |
12 | 37a50716 |
13 | 211a449b |
14 | 1357b00a |
15 | b776e43 |
hex | 7cec102 |
130990338 has 64 divisors (see below), whose sum is σ = 309899520. Its totient is φ = 40870656.
The previous prime is 130990337. The next prime is 130990339. The reversal of 130990338 is 833099031.
It is an interprime number because it is at equal distance from previous prime (130990337) and next prime (130990339).
It is not an unprimeable number, because it can be changed into a prime (130990331) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268731 + ... + 269217.
It is an arithmetic number, because the mean of its divisors is an integer number (4842180).
Almost surely, 2130990338 is an apocalyptic number.
130990338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 130990338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154949760).
130990338 is an abundant number, since it is smaller than the sum of its proper divisors (178909182).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130990338 is a wasteful number, since it uses less digits than its factorization.
130990338 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 808 (or 802 counting only the distinct ones).
The product of its (nonzero) digits is 17496, while the sum is 36.
The square root of 130990338 is about 11445.1010480467. The cubic root of 130990338 is about 507.8628212691.
It can be divided in two parts, 130990 and 338, that added together give a triangular number (131328 = T512).
The spelling of 130990338 in words is "one hundred thirty million, nine hundred ninety thousand, three hundred thirty-eight".
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