Base | Representation |
---|---|
bin | 1010101111111… |
… | …11011010010101 |
3 | 20021200101000110 |
4 | 11113333122111 |
5 | 141041101000 |
6 | 12540433233 |
7 | 2143322145 |
oct | 527773225 |
9 | 207611013 |
10 | 90175125 |
11 | 469a09a7 |
12 | 26248819 |
13 | 158b3881 |
14 | bd94925 |
15 | 7db3850 |
hex | 55ff695 |
90175125 has 32 divisors (see below), whose sum is σ = 154911744. Its totient is φ = 46536000.
The previous prime is 90175117. The next prime is 90175133. The reversal of 90175125 is 52157109.
It is an interprime number because it is at equal distance from previous prime (90175117) and next prime (90175133).
It is not a de Polignac number, because 90175125 - 23 = 90175117 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 90175092 and 90175101.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7747 + ... + 15503.
It is an arithmetic number, because the mean of its divisors is an integer number (4840992).
Almost surely, 290175125 is an apocalyptic number.
It is an amenable number.
90175125 is a deficient number, since it is larger than the sum of its proper divisors (64736619).
90175125 is a wasteful number, since it uses less digits than its factorization.
90175125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7806 (or 7796 counting only the distinct ones).
The product of its (nonzero) digits is 3150, while the sum is 30.
The square root of 90175125 is about 9496.0583928280. The cubic root of 90175125 is about 448.4309552194.
The spelling of 90175125 in words is "ninety million, one hundred seventy-five thousand, one hundred twenty-five".
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