Base | Representation |
---|---|
bin | 111010101100111… |
… | …0010000100110100 |
3 | 12002021022202210212 |
4 | 1311121302010310 |
5 | 13013220133410 |
6 | 523241204552 |
7 | 66545054063 |
oct | 16531620464 |
9 | 5067282725 |
10 | 1969692980 |
11 | 920927542 |
12 | 46b790758 |
13 | 2550c5708 |
14 | 14984a1da |
15 | b7dc7b05 |
hex | 75672134 |
1969692980 has 24 divisors (see below), whose sum is σ = 4139584512. Its totient is φ = 787262112.
The previous prime is 1969692953. The next prime is 1969692983. The reversal of 1969692980 is 892969691.
It is a super-2 number, since 2×19696929802 = 7759380870922560800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1969692983) 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, 11732 + ... + 63851.
It is an arithmetic number, because the mean of its divisors is an integer number (172482688).
Almost surely, 21969692980 is an apocalyptic number.
1969692980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1969692980 is an abundant number, since it is smaller than the sum of its proper divisors (2169891532).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1969692980 is a wasteful number, since it uses less digits than its factorization.
1969692980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76895 (or 76893 counting only the distinct ones).
The product of its (nonzero) digits is 3779136, while the sum is 59.
The square root of 1969692980 is about 44381.2232819241. The cubic root of 1969692980 is about 1253.5245550687.
The spelling of 1969692980 in words is "one billion, nine hundred sixty-nine million, six hundred ninety-two thousand, nine hundred eighty".
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