Search a number
-
+
67058944 = 28416389
BaseRepresentation
bin1111111111001…
…1110100000000
311200011221120121
43333303310000
5114131341234
610353150024
71442664061
oct377636400
9150157517
1067058944
1134942417
121a55b314
1310b7bc64
148c98568
155d494b4
hex3ff3d00

67058944 has 36 divisors (see below), whose sum is σ = 137142180. Its totient is φ = 32706560.

The previous prime is 67058941. The next prime is 67058963. The reversal of 67058944 is 44985076.

It can be written as a sum of positive squares in 2 ways, for example, as 1254400 + 65804544 = 1120^2 + 8112^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67058944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67058941) 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, 7302 + ... + 13690.

It is an arithmetic number, because the mean of its divisors is an integer number (3809505).

Almost surely, 267058944 is an apocalyptic number.

67058944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67058944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68571090).

67058944 is an abundant number, since it is smaller than the sum of its proper divisors (70083236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67058944 is an equidigital number, since it uses as much as digits as its factorization.

67058944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6446 (or 6432 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 67058944 is about 8188.9525581725. The cubic root of 67058944 is about 406.2738815468.

The spelling of 67058944 in words is "sixty-seven million, fifty-eight thousand, nine hundred forty-four".

Divisors: 1 2 4 8 16 32 41 64 82 128 164 256 328 656 1312 2624 5248 6389 10496 12778 25556 51112 102224 204448 261949 408896 523898 817792 1047796 1635584 2095592 4191184 8382368 16764736 33529472 67058944