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190716628168 = 231119374436959
BaseRepresentation
bin1011000110011110011…
…0001100110011001000
3200020021100222112102001
42301213212030303020
511111041424100133
6223340343120344
716531064410003
oct2614746146310
9606240875361
10190716628168
1173978623580
1230b667430b4
1314ca4c43851
1493331c453a
154e6347087d
hex2c6798ccc8

190716628168 has 128 divisors (see below), whose sum is σ = 422744832000. Its totient is φ = 79715301120.

The previous prime is 190716628163. The next prime is 190716628169. The reversal of 190716628168 is 861826617091.

It is not an unprimeable number, because it can be changed into a prime (190716628163) 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, 27402273 + ... + 27409231.

It is an arithmetic number, because the mean of its divisors is an integer number (3302694000).

Almost surely, 2190716628168 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 190716628168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211372416000).

190716628168 is an abundant number, since it is smaller than the sum of its proper divisors (232028203832).

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

190716628168 is a wasteful number, since it uses less digits than its factorization.

190716628168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475 (or 7471 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 190716628168 in words is "one hundred ninety billion, seven hundred sixteen million, six hundred twenty-eight thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 11 19 22 37 38 44 74 76 88 148 152 209 296 407 418 443 703 814 836 886 1406 1628 1672 1772 2812 3256 3544 4873 5624 6959 7733 8417 9746 13918 15466 16391 16834 19492 27836 30932 32782 33668 38984 55672 61864 65564 67336 76549 92587 131128 132221 153098 180301 185174 257483 264442 306196 311429 360602 370348 514966 528884 612392 622858 721204 740696 1029932 1057768 1245716 1442408 1454431 2059864 2491432 2832313 2908862 3082837 3425719 4892177 5664626 5817724 6165674 6851438 9784354 11329252 11635448 12331348 13702876 19568708 22658504 24662696 27405752 33911207 39137416 53813947 58573903 67822414 107627894 114064969 117147806 135644828 215255788 228129938 234295612 271289656 430511576 456259876 468591224 644312933 912519752 1254714659 1288625866 2167234411 2509429318 2577251732 4334468822 5018858636 5154503464 8668937644 10037717272 17337875288 23839578521 47679157042 95358314084 190716628168