Base | Representation |
---|---|
bin | 10010101110111… |
… | …01011000011101 |
3 | 101221200202212120 |
4 | 21113131120131 |
5 | 310212111410 |
6 | 23332053153 |
7 | 3615464352 |
oct | 1127353035 |
9 | 357622776 |
10 | 157144605 |
11 | 80782082 |
12 | 447641b9 |
13 | 26730b97 |
14 | 16c28629 |
15 | dbe1570 |
hex | 95dd61d |
157144605 has 16 divisors (see below), whose sum is σ = 251589120. Its totient is φ = 83757888.
The previous prime is 157144543. The next prime is 157144613. The reversal of 157144605 is 506441751.
It is not a de Polignac number, because 157144605 - 226 = 90035741 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38859 + ... + 42711.
It is an arithmetic number, because the mean of its divisors is an integer number (15724320).
Almost surely, 2157144605 is an apocalyptic number.
157144605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
157144605 is a deficient number, since it is larger than the sum of its proper divisors (94444515).
157144605 is a wasteful number, since it uses less digits than its factorization.
157144605 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6580.
The product of its (nonzero) digits is 16800, while the sum is 33.
The square root of 157144605 is about 12535.7331257490. The cubic root of 157144605 is about 539.6346465547.
The spelling of 157144605 in words is "one hundred fifty-seven million, one hundred forty-four thousand, six hundred five".
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