Base | Representation |
---|---|
bin | 1011001111010110101… |
… | …0101110101100010101 |
3 | 200110102111001112011121 |
4 | 2303311222232230111 |
5 | 11130432121231440 |
6 | 224413051003541 |
7 | 16644126310300 |
oct | 2636552565425 |
9 | 613374045147 |
10 | 193100180245 |
11 | 74991021525 |
12 | 31510a395b1 |
13 | 152949c0aab |
14 | 94bb9a1b37 |
15 | 505284834a |
hex | 2cf5aaeb15 |
193100180245 has 24 divisors (see below), whose sum is σ = 278846998200. Its totient is φ = 127845631872.
The previous prime is 193100180183. The next prime is 193100180257. The reversal of 193100180245 is 542081001391.
It can be written as a sum of positive squares in 4 ways, for example, as 4148261649 + 188951918596 = 64407^2 + 434686^2 .
It is not a de Polignac number, because 193100180245 - 29 = 193100179733 is a prime.
It is a super-2 number, since 2×1931001802452 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 193100180245.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13581930 + ... + 13596139.
It is an arithmetic number, because the mean of its divisors is an integer number (11618624925).
Almost surely, 2193100180245 is an apocalyptic number.
It is an amenable number.
193100180245 is a deficient number, since it is larger than the sum of its proper divisors (85746817955).
193100180245 is a wasteful number, since it uses less digits than its factorization.
193100180245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27178117 (or 27178110 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 34.
The spelling of 193100180245 in words is "one hundred ninety-three billion, one hundred million, one hundred eighty thousand, two hundred forty-five".
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