Base | Representation |
---|---|
bin | 1011101101010111… |
… | …1110111111010100 |
3 | 22010001022010221202 |
4 | 2323111332333110 |
5 | 22414113234140 |
6 | 1235515332032 |
7 | 140613633623 |
oct | 27325767724 |
9 | 8101263852 |
10 | 3143102420 |
11 | 1373221407 |
12 | 738751018 |
13 | 3b1239a23 |
14 | 21b6176ba |
15 | 135e0e915 |
hex | bb57efd4 |
3143102420 has 24 divisors (see below), whose sum is σ = 6631806048. Its totient is φ = 1251280800.
The previous prime is 3143102399. The next prime is 3143102429. The reversal of 3143102420 is 242013413.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 3143102392 and 3143102401.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3143102429) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368186 + ... + 376625.
It is an arithmetic number, because the mean of its divisors is an integer number (276325252).
Almost surely, 23143102420 is an apocalyptic number.
It is an amenable number.
3143102420 is an abundant number, since it is smaller than the sum of its proper divisors (3488703628).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3143102420 is a wasteful number, since it uses less digits than its factorization.
3143102420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 745031 (or 745029 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 3143102420 is about 56063.3785995814. The cubic root of 3143102420 is about 1464.8264647077.
Adding to 3143102420 its reverse (242013413), we get a palindrome (3385115833).
The spelling of 3143102420 in words is "three billion, one hundred forty-three million, one hundred two thousand, four hundred twenty".
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