Base | Representation |
---|---|
bin | 101001111100010101… |
… | …1001011010110010001 |
3 | 22121111020020220221021 |
4 | 1103320223023112101 |
5 | 2433431240223121 |
6 | 105213410555441 |
7 | 6336024250051 |
oct | 1237053132621 |
9 | 277436226837 |
10 | 90071414161 |
11 | 35220a68663 |
12 | 15558898b81 |
13 | 8655867691 |
14 | 45065ab561 |
15 | 2522786641 |
hex | 14f8acb591 |
90071414161 has 3 divisors (see below), whose sum is σ = 90071714281. Its totient is φ = 90071114042.
The previous prime is 90071414113. The next prime is 90071414171. The reversal of 90071414161 is 16141417009.
The square root of 90071414161 is 300119.
It is a perfect power (a square), and thus also a powerful number.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16141417009 = 37447 ⋅431047.
It is not a de Polignac number, because 90071414161 - 27 = 90071414033 is a prime.
It is a super-2 number, since 2×900714141612 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (90071414171) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 150060 + ... + 450178.
Almost surely, 290071414161 is an apocalyptic number.
90071414161 is the 300119-th square number.
90071414161 is the 150060-th centered octagonal number.
It is an amenable number.
90071414161 is a deficient number, since it is larger than the sum of its proper divisors (300120).
90071414161 is an frugal number, since it uses more digits than its factorization.
90071414161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 600238 (or 300119 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 34.
The spelling of 90071414161 in words is "ninety billion, seventy-one million, four hundred fourteen thousand, one hundred sixty-one".
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