Base | Representation |
---|---|
bin | 1000001011111… |
… | …01100110100110 |
3 | 11210012220011002 |
4 | 10011331212212 |
5 | 120040000120 |
6 | 10451513302 |
7 | 1462462436 |
oct | 405754646 |
9 | 153186132 |
10 | 68671910 |
11 | 3584424a |
12 | 1abb8832 |
13 | 112c5188 |
14 | 91982c6 |
15 | 6067375 |
hex | 417d9a6 |
68671910 has 24 divisors (see below), whose sum is σ = 125754768. Its totient is φ = 26994800.
The previous prime is 68671907. The next prime is 68671927. The reversal of 68671910 is 1917686.
68671910 = T436 + T437 + ... + T790.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220655 + ... + 220965.
It is an arithmetic number, because the mean of its divisors is an integer number (5239782).
Almost surely, 268671910 is an apocalyptic number.
68671910 is a deficient number, since it is larger than the sum of its proper divisors (57082858).
68671910 is an equidigital number, since it uses as much as digits as its factorization.
68671910 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 700 (or 389 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 38.
The square root of 68671910 is about 8286.8516337630. The cubic root of 68671910 is about 409.5054715728.
It can be divided in two parts, 68671 and 910, that multiplied together give a triangular number (62490610 = T11179).
The spelling of 68671910 in words is "sixty-eight million, six hundred seventy-one thousand, nine hundred ten".
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