Base | Representation |
---|---|
bin | 11011011110001111… |
… | …011001101010000101 |
3 | 2211010210102010012000 |
4 | 123132033121222011 |
5 | 440403041223411 |
6 | 21315032415513 |
7 | 2062666055364 |
oct | 333617315205 |
9 | 84123363160 |
10 | 29498382981 |
11 | 11568082811 |
12 | 5872b47599 |
13 | 2a21494cb2 |
14 | 15db9917db |
15 | b79a91956 |
hex | 6de3d9a85 |
29498382981 has 16 divisors (see below), whose sum is σ = 44088049920. Its totient is φ = 19491554880.
The previous prime is 29498382973. The next prime is 29498383007. The reversal of 29498382981 is 18928389492.
It is a happy number.
29498382981 is a `hidden beast` number, since 2 + 94 + 98 + 382 + 9 + 81 = 666.
It is not a de Polignac number, because 29498382981 - 23 = 29498382973 is a prime.
It is a super-2 number, since 2×294983829812 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (29498382961) 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, 4831165 + ... + 4837266.
It is an arithmetic number, because the mean of its divisors is an integer number (2755503120).
Almost surely, 229498382981 is an apocalyptic number.
It is an amenable number.
29498382981 is a deficient number, since it is larger than the sum of its proper divisors (14589666939).
29498382981 is a wasteful number, since it uses less digits than its factorization.
29498382981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9668553 (or 9668547 counting only the distinct ones).
The product of its digits is 17915904, while the sum is 63.
The spelling of 29498382981 in words is "twenty-nine billion, four hundred ninety-eight million, three hundred eighty-two thousand, nine hundred eighty-one".
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