Base | Representation |
---|---|
bin | 1111101000100… |
… | …11110010010010 |
3 | 100010210021011002 |
4 | 13310103302102 |
5 | 232033344132 |
6 | 21003022002 |
7 | 3151532246 |
oct | 764236222 |
9 | 303707132 |
10 | 131153042 |
11 | 6803a249 |
12 | 37b0a902 |
13 | 21230567 |
14 | 135c0426 |
15 | b7aa262 |
hex | 7d13c92 |
131153042 has 4 divisors (see below), whose sum is σ = 196729566. Its totient is φ = 65576520.
The previous prime is 131153039. The next prime is 131153063. The reversal of 131153042 is 240351131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240351131 = 53 ⋅4534927.
It can be written as a sum of positive squares in only one way, i.e., 131079601 + 73441 = 11449^2 + 271^2 .
It is a super-2 number, since 2×1311530422 = 34402240851707528, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32788259 + ... + 32788262.
Almost surely, 2131153042 is an apocalyptic number.
131153042 is a deficient number, since it is larger than the sum of its proper divisors (65576524).
131153042 is an equidigital number, since it uses as much as digits as its factorization.
131153042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65576523.
The product of its (nonzero) digits is 360, while the sum is 20.
The square root of 131153042 is about 11452.2068615617. The cubic root of 131153042 is about 508.0730075699.
The spelling of 131153042 in words is "one hundred thirty-one million, one hundred fifty-three thousand, forty-two".
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