Base | Representation |
---|---|
bin | 1110101000101… |
… | …1010010011111 |
3 | 11021111211102020 |
4 | 3222023102133 |
5 | 111203403220 |
6 | 10031431223 |
7 | 1343534400 |
oct | 352132237 |
9 | 137454366 |
10 | 61387935 |
11 | 31719734 |
12 | 18685513 |
13 | c94492b |
14 | 821d9a7 |
15 | 55c9040 |
hex | 3a8b49f |
61387935 has 60 divisors (see below), whose sum is σ = 121397688. Its totient is φ = 26412288.
The previous prime is 61387927. The next prime is 61387951. The reversal of 61387935 is 53978316.
It is not a de Polignac number, because 61387935 - 23 = 61387927 is a prime.
Its product of digits (136080) is a multiple of the sum of its prime factors (90).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3611047 + ... + 3611063.
Almost surely, 261387935 is an apocalyptic number.
61387935 is a deficient number, since it is larger than the sum of its proper divisors (60009753).
61387935 is an frugal number, since it uses more digits than its factorization.
61387935 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 90 (or 32 counting only the distinct ones).
The product of its digits is 136080, while the sum is 42.
The square root of 61387935 is about 7835.0453093776. The cubic root of 61387935 is about 394.4824391681.
The spelling of 61387935 in words is "sixty-one million, three hundred eighty-seven thousand, nine hundred thirty-five".
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