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199420152 = 2338309173
BaseRepresentation
bin10111110001011…
…10100011111000
3111220020121000120
423320232203320
5402022421102
631442133240
74641020601
oct1370564370
9456217016
10199420152
11a2627348
1256951220
13324133b9
141c6b0da8
15127926bc
hexbe2e8f8

199420152 has 16 divisors (see below), whose sum is σ = 498550440. Its totient is φ = 66473376.

The previous prime is 199420147. The next prime is 199420213. The reversal of 199420152 is 251024991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4154563 + ... + 4154610.

Almost surely, 2199420152 is an apocalyptic number.

199420152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199420152 is an abundant number, since it is smaller than the sum of its proper divisors (299130288).

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

199420152 is a wasteful number, since it uses less digits than its factorization.

199420152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8309182 (or 8309178 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 199420152 is about 14121.6200203801. The cubic root of 199420152 is about 584.2378386353.

The spelling of 199420152 in words is "one hundred ninety-nine million, four hundred twenty thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 8309173 16618346 24927519 33236692 49855038 66473384 99710076 199420152