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67961088 = 2832132269
BaseRepresentation
bin1000000110100…
…00000100000000
311201212210002100
410003100010000
5114344223323
610424350400
71453442166
oct403200400
9151783070
1067961088
11353a9198
121a915400
1311106780
149051236
155e76943
hex40d0100

67961088 has 108 divisors (see below), whose sum is σ = 211114540. Its totient is φ = 20901888.

The previous prime is 67961071. The next prime is 67961111. The reversal of 67961088 is 88016976.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5992704 + 61968384 = 2448^2 + 7872^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28818 + ... + 31086.

Almost surely, 267961088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67961088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105557270).

67961088 is an abundant number, since it is smaller than the sum of its proper divisors (143153452).

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

67961088 is a wasteful number, since it uses less digits than its factorization.

67961088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304 (or 2287 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 67961088 is about 8243.8515270473. The cubic root of 67961088 is about 408.0876397662.

The spelling of 67961088 in words is "sixty-seven million, nine hundred sixty-one thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 64 72 78 96 104 117 128 144 156 192 208 234 256 288 312 384 416 468 576 624 768 832 936 1152 1248 1664 1872 2269 2304 2496 3328 3744 4538 4992 6807 7488 9076 9984 13614 14976 18152 20421 27228 29497 29952 36304 40842 54456 58994 72608 81684 88491 108912 117988 145216 163368 176982 217824 235976 265473 290432 326736 353964 435648 471952 530946 580864 653472 707928 871296 943904 1061892 1306944 1415856 1742592 1887808 2123784 2613888 2831712 3775616 4247568 5227776 5663424 7551232 8495136 11326848 16990272 22653696 33980544 67961088