Base | Representation |
---|---|
bin | 1001001001111100001… |
… | …1000100100111100100 |
3 | 120000222121121220022221 |
4 | 2102133003010213210 |
5 | 10034111011032343 |
6 | 200131242402124 |
7 | 14235503120620 |
oct | 2223703044744 |
9 | 500877556287 |
10 | 157287205348 |
11 | 60783588409 |
12 | 26597200344 |
13 | 11aa82235a0 |
14 | 7881510180 |
15 | 415872b5ed |
hex | 249f0c49e4 |
157287205348 has 48 divisors (see below), whose sum is σ = 345980404224. Its totient is φ = 60899598720.
The previous prime is 157287205291. The next prime is 157287205349. The reversal of 157287205348 is 843502782751.
It is a happy number.
It is a super-2 number, since 2×1572872053482 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (52).
It is a junction number, because it is equal to n+sod(n) for n = 157287205295 and 157287205304.
It is not an unprimeable number, because it can be changed into a prime (157287205349) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4579783 + ... + 4613998.
It is an arithmetic number, because the mean of its divisors is an integer number (7207925088).
Almost surely, 2157287205348 is an apocalyptic number.
It is an amenable number.
157287205348 is an abundant number, since it is smaller than the sum of its proper divisors (188693198876).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157287205348 is a wasteful number, since it uses less digits than its factorization.
157287205348 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9193852 (or 9193850 counting only the distinct ones).
The product of its (nonzero) digits is 3763200, while the sum is 52.
The spelling of 157287205348 in words is "one hundred fifty-seven billion, two hundred eighty-seven million, two hundred five thousand, three hundred forty-eight".
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