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189829654 = 2713559261
BaseRepresentation
bin10110101000010…
…01001000010110
3111020012100022221
423110021020112
5342044022104
630500412554
74463345140
oct1324111026
9436170287
10189829654
1198176913
12536a715a
1330436051
141b2d5c90
15119eac54
hexb509216

189829654 has 8 divisors (see below), whose sum is σ = 325422288. Its totient is φ = 81355560.

The previous prime is 189829643. The next prime is 189829657. The reversal of 189829654 is 456928981.

189829654 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189829657) 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, 6779617 + ... + 6779644.

It is an arithmetic number, because the mean of its divisors is an integer number (40677786).

Almost surely, 2189829654 is an apocalyptic number.

189829654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

189829654 is a deficient number, since it is larger than the sum of its proper divisors (135592634).

189829654 is a wasteful number, since it uses less digits than its factorization.

189829654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13559270.

The product of its digits is 1244160, while the sum is 52.

The square root of 189829654 is about 13777.8682676240. The cubic root of 189829654 is about 574.7178492218.

The spelling of 189829654 in words is "one hundred eighty-nine million, eight hundred twenty-nine thousand, six hundred fifty-four".

Divisors: 1 2 7 14 13559261 27118522 94914827 189829654