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193195828 = 22727113883
BaseRepresentation
bin10111000001111…
…10111100110100
3111110112100212001
423200332330310
5343424231303
631100505044
74534065100
oct1340767464
9443470761
10193195828
119a065981
125484b184
1331044277
141b930900
1511e6331d
hexb83ef34

193195828 has 36 divisors (see below), whose sum is σ = 398859552. Its totient is φ = 81626160.

The previous prime is 193195817. The next prime is 193195853. The reversal of 193195828 is 828591391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6975 + ... + 20857.

It is an arithmetic number, because the mean of its divisors is an integer number (11079432).

Almost surely, 2193195828 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 193195828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199429776).

193195828 is an abundant number, since it is smaller than the sum of its proper divisors (205663724).

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

193195828 is a wasteful number, since it uses less digits than its factorization.

193195828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13972 (or 13963 counting only the distinct ones).

The product of its digits is 155520, while the sum is 46.

The square root of 193195828 is about 13899.4902064788. The cubic root of 193195828 is about 578.0950462903.

The spelling of 193195828 in words is "one hundred ninety-three million, one hundred ninety-five thousand, eight hundred twenty-eight".

Divisors: 1 2 4 7 14 28 49 71 98 142 196 284 497 994 1988 3479 6958 13883 13916 27766 55532 97181 194362 388724 680267 985693 1360534 1971386 2721068 3942772 6899851 13799702 27599404 48298957 96597914 193195828