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198833652 = 22325523157
BaseRepresentation
bin10111101100111…
…11010111110100
3111212010210111100
423312133113310
5401400134102
631421410100
74633025643
oct1366372764
9455123440
10198833652
11a2266736
1256709930
1332269464
141c59b35a
15126c8a1c
hexbd9f5f4

198833652 has 18 divisors (see below), whose sum is σ = 502607378. Its totient is φ = 66277872.

The previous prime is 198833639. The next prime is 198833653. The reversal of 198833652 is 256338891.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 147768336 + 51065316 = 12156^2 + 7146^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 198833598 and 198833607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198833653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2761543 + ... + 2761614.

Almost surely, 2198833652 is an apocalyptic number.

198833652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198833652 is an abundant number, since it is smaller than the sum of its proper divisors (303773726).

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

198833652 is a wasteful number, since it uses less digits than its factorization.

198833652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5523167 (or 5523162 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 198833652 is about 14100.8386984605. The cubic root of 198833652 is about 583.6645231863.

The spelling of 198833652 in words is "one hundred ninety-eight million, eight hundred thirty-three thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 5523157 11046314 16569471 22092628 33138942 49708413 66277884 99416826 198833652