Base | Representation |
---|---|
bin | 101101101110000000… |
… | …001011001110111111 |
3 | 11200201011211112020222 |
4 | 231232000023032333 |
5 | 1301014041230111 |
6 | 34315100531555 |
7 | 3355333434254 |
oct | 555600131677 |
9 | 150634745228 |
10 | 49090180031 |
11 | 19901143922 |
12 | 9620250bbb |
13 | 4824418709 |
14 | 253997942b |
15 | 1424a787db |
hex | b6e00b3bf |
49090180031 has 4 divisors (see below), whose sum is σ = 49238489064. Its totient is φ = 48941871000.
The previous prime is 49090180001. The next prime is 49090180081. The reversal of 49090180031 is 13008109094.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-49090180031 is a prime.
It is a super-2 number, since 2×490901800312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 49090179973 and 49090180000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49090180001) 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, 74154020 + ... + 74154681.
It is an arithmetic number, because the mean of its divisors is an integer number (12309622266).
Almost surely, 249090180031 is an apocalyptic number.
49090180031 is a deficient number, since it is larger than the sum of its proper divisors (148309033).
49090180031 is a wasteful number, since it uses less digits than its factorization.
49090180031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 148309032.
The product of its (nonzero) digits is 7776, while the sum is 35.
The spelling of 49090180031 in words is "forty-nine billion, ninety million, one hundred eighty thousand, thirty-one".
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