Base | Representation |
---|---|
bin | 10001100111001000011… |
… | …000100011011110100100 |
3 | 11021200212020112201010000 |
4 | 101213020120203132210 |
5 | 124312041402041043 |
6 | 2323551412101300 |
7 | 153303031426500 |
oct | 21471030433644 |
9 | 4250766481100 |
10 | 1210247690148 |
11 | 4272992a7402 |
12 | 176679604830 |
13 | 8a1836b93a3 |
14 | 4280d525300 |
15 | 217346c32d3 |
hex | 119c86237a4 |
1210247690148 has 180 divisors, whose sum is σ = 3740706550812. Its totient is φ = 340116174720.
The previous prime is 1210247690129. The next prime is 1210247690153. The reversal of 1210247690148 is 8410967420121.
It can be written as a sum of positive squares in 2 ways, for example, as 237404766564 + 972842923584 = 487242^2 + 986328^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 343590 + ... + 1593282.
Almost surely, 21210247690148 is an apocalyptic number.
1210247690148 is a gapful number since it is divisible by the number (18) 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 1210247690148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1870353275406).
1210247690148 is an abundant number, since it is smaller than the sum of its proper divisors (2530458860664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210247690148 is a wasteful number, since it uses less digits than its factorization.
1210247690148 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1249784 (or 1249766 counting only the distinct ones).
The product of its (nonzero) digits is 193536, while the sum is 45.
The spelling of 1210247690148 in words is "one trillion, two hundred ten billion, two hundred forty-seven million, six hundred ninety thousand, one hundred forty-eight".
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