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189541253 = 1189193607
BaseRepresentation
bin10110100110000…
…10101110000101
3111012122200201102
423103002232011
5342010310003
630450305445
74461034256
oct1323025605
9435580642
10189541253
1197a9a170
1253588285
13303649b5
141b25cb2d
1511990588
hexb4c2b85

189541253 has 8 divisors (see below), whose sum is σ = 209096640. Its totient is φ = 170373280.

The previous prime is 189541199. The next prime is 189541267. The reversal of 189541253 is 352145981.

It is a happy number.

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

It is not a de Polignac number, because 189541253 - 28 = 189540997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189541273) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 95825 + ... + 97782.

It is an arithmetic number, because the mean of its divisors is an integer number (26137080).

Almost surely, 2189541253 is an apocalyptic number.

It is an amenable number.

189541253 is a deficient number, since it is larger than the sum of its proper divisors (19555387).

189541253 is a wasteful number, since it uses less digits than its factorization.

189541253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193707.

The product of its digits is 43200, while the sum is 38.

The square root of 189541253 is about 13767.3981928322. The cubic root of 189541253 is about 574.4266526872.

The spelling of 189541253 in words is "one hundred eighty-nine million, five hundred forty-one thousand, two hundred fifty-three".

Divisors: 1 11 89 979 193607 2129677 17231023 189541253