Search a number
-
+
3031965 = 33537607
BaseRepresentation
bin1011100100001110011101
312201001002000
423210032131
51234010330
6144552513
734525356
oct13441635
95631060
103031965
111790a62
121022739
13822081
1458cd2d
153ed560
hex2e439d

3031965 has 32 divisors (see below), whose sum is σ = 5544960. Its totient is φ = 1570752.

The previous prime is 3031957. The next prime is 3031969. The reversal of 3031965 is 5691303.

It is not a de Polignac number, because 3031965 - 23 = 3031957 is a prime.

It is a super-2 number, since 2×30319652 = 18385623522450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4692 + ... + 5298.

It is an arithmetic number, because the mean of its divisors is an integer number (173280).

Almost surely, 23031965 is an apocalyptic number.

It is an amenable number.

3031965 is a deficient number, since it is larger than the sum of its proper divisors (2512995).

3031965 is a wasteful number, since it uses less digits than its factorization.

3031965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 3031965 is about 1741.2538585743. The cubic root of 3031965 is about 144.7353873944.

The spelling of 3031965 in words is "three million, thirty-one thousand, nine hundred sixty-five".

Divisors: 1 3 5 9 15 27 37 45 111 135 185 333 555 607 999 1665 1821 3035 4995 5463 9105 16389 22459 27315 67377 81945 112295 202131 336885 606393 1010655 3031965