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189922253 = 4716724197
BaseRepresentation
bin10110101000111…
…11101111001101
3111020101001100112
423110133233031
5342110003003
630502405405
74464212123
oct1324375715
9436331315
10189922253
119822a444
1253730865
1330469241
141b31b913
1511a183d8
hexb51fbcd

189922253 has 8 divisors (see below), whose sum is σ = 195132672. Its totient is φ = 184760656.

The previous prime is 189922223. The next prime is 189922259. The reversal of 189922253 is 352229981.

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

It is a cyclic number.

It is not a de Polignac number, because 189922253 - 28 = 189921997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189922253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189922259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4250 + ... + 19947.

It is an arithmetic number, because the mean of its divisors is an integer number (24391584).

Almost surely, 2189922253 is an apocalyptic number.

It is an amenable number.

189922253 is a deficient number, since it is larger than the sum of its proper divisors (5210419).

189922253 is a wasteful number, since it uses less digits than its factorization.

189922253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24411.

The product of its digits is 77760, while the sum is 41.

The square root of 189922253 is about 13781.2282834296. The cubic root of 189922253 is about 574.8112832489.

The spelling of 189922253 in words is "one hundred eighty-nine million, nine hundred twenty-two thousand, two hundred fifty-three".

Divisors: 1 47 167 7849 24197 1137259 4040899 189922253