Base | Representation |
---|---|
bin | 1011111001010… |
… | …0101010101101 |
3 | 10110212202222100 |
4 | 2332110222231 |
5 | 100233021023 |
6 | 4541205313 |
7 | 1144034523 |
oct | 276245255 |
9 | 113782870 |
10 | 49892013 |
11 | 26187676 |
12 | 14860839 |
13 | a44b202 |
14 | 68aa313 |
15 | 45a7c43 |
hex | 2f94aad |
49892013 has 12 divisors (see below), whose sum is σ = 72392320. Its totient is φ = 33110856.
The previous prime is 49892009. The next prime is 49892033. The reversal of 49892013 is 31029894.
It is not a de Polignac number, because 49892013 - 22 = 49892009 is a prime.
It is a super-2 number, since 2×498920132 = 4978425922384338, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49892033) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10423 + ... + 14436.
Almost surely, 249892013 is an apocalyptic number.
It is an amenable number.
49892013 is a deficient number, since it is larger than the sum of its proper divisors (22500307).
49892013 is a wasteful number, since it uses less digits than its factorization.
49892013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25088 (or 25085 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
The square root of 49892013 is about 7063.4278505553. The cubic root of 49892013 is about 368.1377403608.
The spelling of 49892013 in words is "forty-nine million, eight hundred ninety-two thousand, thirteen".
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