Search a number
-
+
3068905081 = 11383728437
BaseRepresentation
bin1011011011101011…
…1100011001111001
321220212200112100011
42312322330121321
522241114430311
61224305141521
7136023156064
oct26672743171
97825615304
103068905081
1113353538a0
1271792a8a1
1339ba5b888
142118218db
1512e655321
hexb6ebc679

3068905081 has 8 divisors (see below), whose sum is σ = 3356642304. Its totient is φ = 2782625520.

The previous prime is 3068905069. The next prime is 3068905223. The reversal of 3068905081 is 1805098603.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3068905081 - 27 = 3068904953 is a prime.

It is a super-2 number, since 2×30689050812 = 18836356792375233122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3068906081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360006 + ... + 368431.

It is an arithmetic number, because the mean of its divisors is an integer number (419580288).

Almost surely, 23068905081 is an apocalyptic number.

It is an amenable number.

3068905081 is a deficient number, since it is larger than the sum of its proper divisors (287737223).

3068905081 is a wasteful number, since it uses less digits than its factorization.

3068905081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728831.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 3068905081 is about 55397.6992392283. The cubic root of 3068905081 is about 1453.2081295864.

The spelling of 3068905081 in words is "three billion, sixty-eight million, nine hundred five thousand, eighty-one".

Divisors: 1 11 383 4213 728437 8012807 278991371 3068905081