Base | Representation |
---|---|
bin | 1110101010000… |
… | …1111111001011 |
3 | 11021200112221122 |
4 | 3222201333023 |
5 | 111214342112 |
6 | 10033425455 |
7 | 1344402425 |
oct | 352417713 |
9 | 137615848 |
10 | 61480907 |
11 | 31782574 |
12 | 1870b28b |
13 | c978047 |
14 | 8245815 |
15 | 55e6872 |
hex | 3aa1fcb |
61480907 has 4 divisors (see below), whose sum is σ = 61751976. Its totient is φ = 61209840.
The previous prime is 61480897. The next prime is 61480921. The reversal of 61480907 is 70908416.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 61480907 - 28 = 61480651 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (61482907) 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, 135194 + ... + 135647.
It is an arithmetic number, because the mean of its divisors is an integer number (15437994).
Almost surely, 261480907 is an apocalyptic number.
61480907 is a deficient number, since it is larger than the sum of its proper divisors (271069).
61480907 is a wasteful number, since it uses less digits than its factorization.
61480907 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 271068.
The product of its (nonzero) digits is 12096, while the sum is 35.
The square root of 61480907 is about 7840.9761509649. The cubic root of 61480907 is about 394.6814865419.
The spelling of 61480907 in words is "sixty-one million, four hundred eighty thousand, nine hundred seven".
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