Base | Representation |
---|---|
bin | 10010100111001… |
… | …10001100111101 |
3 | 101212210100001111 |
4 | 21103212030331 |
5 | 304432212112 |
6 | 23254242021 |
7 | 3604046536 |
oct | 1123461475 |
9 | 355710044 |
10 | 156132157 |
11 | 80150445 |
12 | 44356311 |
13 | 264680bc |
14 | 16a4368d |
15 | da915a7 |
hex | 94e633d |
156132157 has 4 divisors (see below), whose sum is σ = 156521916. Its totient is φ = 155742400.
The previous prime is 156132121. The next prime is 156132191. The reversal of 156132157 is 751231651.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751231651 = 8597 ⋅87383.
It can be written as a sum of positive squares in 2 ways, for example, as 133957476 + 22174681 = 11574^2 + 4709^2 .
It is a cyclic number.
It is not a de Polignac number, because 156132157 - 211 = 156130109 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (156133157) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194278 + ... + 195079.
It is an arithmetic number, because the mean of its divisors is an integer number (39130479).
Almost surely, 2156132157 is an apocalyptic number.
It is an amenable number.
156132157 is a deficient number, since it is larger than the sum of its proper divisors (389759).
156132157 is an equidigital number, since it uses as much as digits as its factorization.
156132157 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 389758.
The product of its digits is 6300, while the sum is 31.
The square root of 156132157 is about 12495.2853908984. The cubic root of 156132157 is about 538.4732330945.
The spelling of 156132157 in words is "one hundred fifty-six million, one hundred thirty-two thousand, one hundred fifty-seven".
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