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189962946 = 23210553497
BaseRepresentation
bin10110101001010…
…01101011000010
3111020110010011200
423110221223002
5342112303241
630503322030
74464441555
oct1324515302
9436403150
10189962946
1198257a78
1253750316
1330481914
141b32c69c
1511a254b6
hexb529ac2

189962946 has 12 divisors (see below), whose sum is σ = 411586422. Its totient is φ = 63320976.

The previous prime is 189962933. The next prime is 189962977. The reversal of 189962946 is 649269981.

189962946 is a `hidden beast` number, since 1 + 8 + 9 + 9 + 629 + 4 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 151659225 + 38303721 = 12315^2 + 6189^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 189962892 and 189962901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5276731 + ... + 5276766.

Almost surely, 2189962946 is an apocalyptic number.

189962946 is an abundant number, since it is smaller than the sum of its proper divisors (221623476).

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

189962946 is a wasteful number, since it uses less digits than its factorization.

189962946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10553505 (or 10553502 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 189962946 is about 13782.7045967038. The cubic root of 189962946 is about 574.8523335995.

The spelling of 189962946 in words is "one hundred eighty-nine million, nine hundred sixty-two thousand, nine hundred forty-six".

Divisors: 1 2 3 6 9 18 10553497 21106994 31660491 63320982 94981473 189962946