Base | Representation |
---|---|
bin | 10010101101111… |
… | …10111111111100 |
3 | 101221110110011100 |
4 | 21112332333330 |
5 | 310144121111 |
6 | 23325253100 |
7 | 3614435466 |
oct | 1126767774 |
9 | 357413140 |
10 | 157020156 |
11 | 806a7627 |
12 | 44704190 |
13 | 266b9347 |
14 | 16bd5136 |
15 | dbb9756 |
hex | 95beffc |
157020156 has 36 divisors (see below), whose sum is σ = 407642872. Its totient is φ = 50925024.
The previous prime is 157020151. The next prime is 157020187. The reversal of 157020156 is 651020751.
It is a tau number, because it is divible by the number of its divisors (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (157020151) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57610 + ... + 60273.
Almost surely, 2157020156 is an apocalyptic number.
It is an amenable number.
157020156 is an abundant number, since it is smaller than the sum of its proper divisors (250622716).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157020156 is a wasteful number, since it uses less digits than its factorization.
157020156 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 117930 (or 117925 counting only the distinct ones).
The product of its (nonzero) digits is 2100, while the sum is 27.
The square root of 157020156 is about 12530.7683722907. The cubic root of 157020156 is about 539.4921562923.
The spelling of 157020156 in words is "one hundred fifty-seven million, twenty thousand, one hundred fifty-six".
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