Base | Representation |
---|---|
bin | 10010110100000… |
… | …01000100001000 |
3 | 101222221211112210 |
4 | 21122001010020 |
5 | 310400040143 |
6 | 23354305120 |
7 | 3624256116 |
oct | 1132010410 |
9 | 358854483 |
10 | 157815048 |
11 | 8109a866 |
12 | 44a281a0 |
13 | 269070b1 |
14 | 16d60ab6 |
15 | dcc5033 |
hex | 9681108 |
157815048 has 32 divisors (see below), whose sum is σ = 407266560. Its totient is φ = 50907840.
The previous prime is 157815041. The next prime is 157815089. The reversal of 157815048 is 840518751.
It is a junction number, because it is equal to n+sod(n) for n = 157814997 and 157815015.
It is not an unprimeable number, because it can be changed into a prime (157815041) 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, 105315 + ... + 106802.
It is an arithmetic number, because the mean of its divisors is an integer number (12727080).
Almost surely, 2157815048 is an apocalyptic number.
It is an amenable number.
157815048 is an abundant number, since it is smaller than the sum of its proper divisors (249451512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157815048 is a wasteful number, since it uses less digits than its factorization.
157815048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 212157 (or 212153 counting only the distinct ones).
The product of its (nonzero) digits is 44800, while the sum is 39.
The square root of 157815048 is about 12562.4459401822. The cubic root of 157815048 is about 540.4009915967.
The spelling of 157815048 in words is "one hundred fifty-seven million, eight hundred fifteen thousand, forty-eight".
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