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189932356 = 22353134513
BaseRepresentation
bin10110101001000…
…10001101000100
3111020101120012201
423110202031010
5342110313411
630502524244
74464253435
oct1324421504
9436346181
10189932356
1198236a99
1253736684
1330470a13
141b32148c
1511a1b3c1
hexb522344

189932356 has 12 divisors (see below), whose sum is σ = 333325692. Its totient is φ = 94696448.

The previous prime is 189932299. The next prime is 189932357. The reversal of 189932356 is 653239981.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 106502400 + 83429956 = 10320^2 + 9134^2 .

It is not an unprimeable number, because it can be changed into a prime (189932357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65845 + ... + 68668.

It is an arithmetic number, because the mean of its divisors is an integer number (27777141).

Almost surely, 2189932356 is an apocalyptic number.

It is an amenable number.

189932356 is a deficient number, since it is larger than the sum of its proper divisors (143393336).

189932356 is a wasteful number, since it uses less digits than its factorization.

189932356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134870 (or 134868 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 189932356 is about 13781.5948278855. The cubic root of 189932356 is about 574.8214755168.

The spelling of 189932356 in words is "one hundred eighty-nine million, nine hundred thirty-two thousand, three hundred fifty-six".

Divisors: 1 2 4 353 706 1412 134513 269026 538052 47483089 94966178 189932356