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194641928 = 231319137719
BaseRepresentation
bin10111001101000…
…00000000001000
3111120020211112022
423212200000020
5344312020203
631151504012
74552300115
oct1346400010
9446224468
10194641928
119a9633a8
1255228008
133142c550
141bbc990c
151214ba38
hexb9a0008

194641928 has 64 divisors (see below), whose sum is σ = 417312000. Its totient is φ = 84367872.

The previous prime is 194641921. The next prime is 194641933. The reversal of 194641928 is 829146491.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (194641921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270353 + ... + 271071.

It is an arithmetic number, because the mean of its divisors is an integer number (6520500).

Almost surely, 2194641928 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 194641928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208656000).

194641928 is an abundant number, since it is smaller than the sum of its proper divisors (222670072).

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

194641928 is a wasteful number, since it uses less digits than its factorization.

194641928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 890 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 194641928 is about 13951.4131183906. The cubic root of 194641928 is about 579.5338386724.

The spelling of 194641928 in words is "one hundred ninety-four million, six hundred forty-one thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 13 19 26 38 52 76 104 137 152 247 274 494 548 719 988 1096 1438 1781 1976 2603 2876 3562 5206 5752 7124 9347 10412 13661 14248 18694 20824 27322 33839 37388 54644 67678 74776 98503 109288 135356 177593 197006 270712 355186 394012 710372 788024 1280539 1420744 1871557 2561078 3743114 5122156 7486228 10244312 14972456 24330241 48660482 97320964 194641928