Base | Representation |
---|---|
bin | 110010011011011… |
… | …1101111010101101 |
3 | 11100221001011100010 |
4 | 1210312331322231 |
5 | 11431141142424 |
6 | 435524123433 |
7 | 56634606333 |
oct | 14466757255 |
9 | 4327034303 |
10 | 1692130989 |
11 | 79918906a |
12 | 3b2836579 |
13 | 20c752953 |
14 | 120a37b53 |
15 | 9d84c229 |
hex | 64dbdead |
1692130989 has 16 divisors (see below), whose sum is σ = 2439721728. Its totient is φ = 1039137792.
The previous prime is 1692130949. The next prime is 1692131003. The reversal of 1692130989 is 9890312961.
It is not a de Polignac number, because 1692130989 - 28 = 1692130733 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1692130949) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350572 + ... + 355365.
It is an arithmetic number, because the mean of its divisors is an integer number (152482608).
Almost surely, 21692130989 is an apocalyptic number.
It is an amenable number.
1692130989 is a deficient number, since it is larger than the sum of its proper divisors (747590739).
1692130989 is a wasteful number, since it uses less digits than its factorization.
1692130989 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 706004.
The product of its (nonzero) digits is 209952, while the sum is 48.
The square root of 1692130989 is about 41135.5197973722. The cubic root of 1692130989 is about 1191.6388663691.
The spelling of 1692130989 in words is "one billion, six hundred ninety-two million, one hundred thirty thousand, nine hundred eighty-nine".
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