Base | Representation |
---|---|
bin | 10010101010011111… |
… | …10001000010111000 |
3 | 221212022122101122222 |
4 | 21111033301002320 |
5 | 131010123143000 |
6 | 4334142103212 |
7 | 503210464625 |
oct | 112517610270 |
9 | 27768571588 |
10 | 10020131000 |
11 | 4282114800 |
12 | 1b3787ab08 |
13 | c38c183c9 |
14 | 6b0ac334c |
15 | 3d9a37a85 |
hex | 2553f10b8 |
10020131000 has 96 divisors (see below), whose sum is σ = 25772750640. Its totient is φ = 3643640000.
The previous prime is 10020130997. The next prime is 10020131003. The reversal of 10020131000 is 13102001.
It is an interprime number because it is at equal distance from previous prime (10020130997) and next prime (10020131003).
It is a super-2 number, since 2×100201310002 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (8).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10020131003) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79595 + ... + 162405.
Almost surely, 210020131000 is an apocalyptic number.
10020131000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 10020131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12886375320).
10020131000 is an abundant number, since it is smaller than the sum of its proper divisors (15752619640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10020131000 is a wasteful number, since it uses less digits than its factorization.
10020131000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82854 (or 82829 counting only the distinct ones).
The product of its (nonzero) digits is 6, while the sum is 8.
Adding to 10020131000 its reverse (13102001), we get a palindrome (10033233001).
The spelling of 10020131000 in words is "ten billion, twenty million, one hundred thirty-one thousand".
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