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67790196 = 223597719
BaseRepresentation
bin1000000101001…
…10010101110100
311201120002200000
410002212111310
5114323241241
610420551300
71452131025
oct402462564
9151502600
1067790196
11352a1861
121a852530
1311076a56
149008c4c
155e40eb6
hex40a6574

67790196 has 72 divisors (see below), whose sum is σ = 179786880. Its totient is φ = 22332672.

The previous prime is 67790159. The next prime is 67790201. The reversal of 67790196 is 69109776.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93925 + ... + 94643.

It is an arithmetic number, because the mean of its divisors is an integer number (2497040).

Almost surely, 267790196 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 67790196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89893440).

67790196 is an abundant number, since it is smaller than the sum of its proper divisors (111996684).

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

67790196 is a wasteful number, since it uses less digits than its factorization.

67790196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 67790196 is about 8233.4801876242. The cubic root of 67790196 is about 407.7452995098.

The spelling of 67790196 in words is "sixty-seven million, seven hundred ninety thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 97 108 162 194 243 291 324 388 486 582 719 873 972 1164 1438 1746 2157 2619 2876 3492 4314 5238 6471 7857 8628 10476 12942 15714 19413 23571 25884 31428 38826 47142 58239 69743 77652 94284 116478 139486 174717 209229 232956 278972 349434 418458 627687 698868 836916 1255374 1883061 2510748 3766122 5649183 7532244 11298366 16947549 22596732 33895098 67790196