Base | Representation |
---|---|
bin | 111010101110011… |
… | …1001100011000100 |
3 | 12002022212021120121 |
4 | 1311130321203010 |
5 | 13013422310040 |
6 | 523310511324 |
7 | 66555026113 |
oct | 16534714304 |
9 | 5068767517 |
10 | 1970510020 |
11 | 921335386 |
12 | 46bb05544 |
13 | 25532057b |
14 | 1499bdc7a |
15 | b7ed9c4a |
hex | 757398c4 |
1970510020 has 24 divisors (see below), whose sum is σ = 4239001368. Its totient is φ = 768979200.
The previous prime is 1970509909. The next prime is 1970510053. The reversal of 1970510020 is 200150791.
It can be written as a sum of positive squares in 4 ways, for example, as 113934276 + 1856575744 = 10674^2 + 43088^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200711 + ... + 1202350.
It is an arithmetic number, because the mean of its divisors is an integer number (176625057).
Almost surely, 21970510020 is an apocalyptic number.
1970510020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1970510020 is an abundant number, since it is smaller than the sum of its proper divisors (2268491348).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1970510020 is a wasteful number, since it uses less digits than its factorization.
1970510020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2403111 (or 2403109 counting only the distinct ones).
The product of its (nonzero) digits is 630, while the sum is 25.
The square root of 1970510020 is about 44390.4271211711. The cubic root of 1970510020 is about 1253.6978541791.
The spelling of 1970510020 in words is "one billion, nine hundred seventy million, five hundred ten thousand, twenty".
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