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120188196 = 22321092281
BaseRepresentation
bin1110010100111…
…10110100100100
322101011012012200
413022132310210
5221232010241
615532014500
72656403622
oct712366444
9271135180
10120188196
1161930197
1234301430
131bb9179b
1411d68512
15a8414b6
hex729ed24

120188196 has 54 divisors (see below), whose sum is σ = 307713042. Its totient is φ = 39553920.

The previous prime is 120188183. The next prime is 120188197. The reversal of 120188196 is 691881021.

It can be written as a sum of positive squares in 3 ways, for example, as 48108096 + 72080100 = 6936^2 + 8490^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 120188196.

It is not an unprimeable number, because it can be changed into a prime (120188197) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 427576 + ... + 427856.

Almost surely, 2120188196 is an apocalyptic number.

It is an amenable number.

120188196 is an abundant number, since it is smaller than the sum of its proper divisors (187524846).

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

120188196 is a wasteful number, since it uses less digits than its factorization.

120188196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 120188196 is about 10963.0377177131. The cubic root of 120188196 is about 493.5001308807.

The spelling of 120188196 in words is "one hundred twenty million, one hundred eighty-eight thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 109 218 281 327 436 562 654 843 981 1124 1308 1686 1962 2529 3372 3924 5058 10116 11881 23762 30629 35643 47524 61258 71286 91887 106929 122516 142572 183774 213858 275661 367548 427716 551322 1102644 3338561 6677122 10015683 13354244 20031366 30047049 40062732 60094098 120188196