Base | Representation |
---|---|
bin | 111001001011… |
… | …1100101010010 |
3 | 2002102012012210 |
4 | 1302113211102 |
5 | 30133343020 |
6 | 2550332550 |
7 | 512556123 |
oct | 162274522 |
9 | 62365183 |
10 | 29981010 |
11 | 15a181a4 |
12 | a05a156 |
13 | 6299457 |
14 | 3da604a |
15 | 29733e0 |
hex | 1c97952 |
29981010 has 32 divisors (see below), whose sum is σ = 72099072. Its totient is φ = 7978880.
The previous prime is 29980997. The next prime is 29981033. The reversal of 29981010 is 1018992.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26782 + ... + 27878.
It is an arithmetic number, because the mean of its divisors is an integer number (2253096).
Almost surely, 229981010 is an apocalyptic number.
29981010 is an abundant number, since it is smaller than the sum of its proper divisors (42118062).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
29981010 is a wasteful number, since it uses less digits than its factorization.
29981010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2018.
The product of its (nonzero) digits is 1296, while the sum is 30.
The square root of 29981010 is about 5475.4917587373. The cubic root of 29981010 is about 310.6576741509.
The spelling of 29981010 in words is "twenty-nine million, nine hundred eighty-one thousand, ten".
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