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189592245 = 3551767137
BaseRepresentation
bin10110100110011…
…11001010110101
3111012202021200000
423103033022311
5342013422440
630451341513
74461336033
oct1323171265
9435667600
10189592245
1198024507
12535b1899
1330381c7b
141b273553
15119a0730
hexb4cf2b5

189592245 has 96 divisors (see below), whose sum is σ = 368903808. Its totient is φ = 93063168.

The previous prime is 189592237. The next prime is 189592259. The reversal of 189592245 is 542295981.

It is a happy number.

189592245 is a `hidden beast` number, since 18 + 9 + 592 + 2 + 45 = 666.

It is not a de Polignac number, because 189592245 - 23 = 189592237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 189592245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1383817 + ... + 1383953.

It is an arithmetic number, because the mean of its divisors is an integer number (3842748).

Almost surely, 2189592245 is an apocalyptic number.

189592245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189592245 is the 6885-th decagonal number.

It is an amenable number.

189592245 is a deficient number, since it is larger than the sum of its proper divisors (179311563).

189592245 is a wasteful number, since it uses less digits than its factorization.

189592245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 229 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 189592245 is about 13769.2499795741. The cubic root of 189592245 is about 574.4781604498.

The spelling of 189592245 in words is "one hundred eighty-nine million, five hundred ninety-two thousand, two hundred forty-five".

Divisors: 1 3 5 9 15 17 27 45 51 67 81 85 135 137 153 201 243 255 335 405 411 459 603 685 765 1005 1139 1215 1233 1377 1809 2055 2295 2329 3015 3417 3699 4131 5427 5695 6165 6885 6987 9045 9179 10251 11097 11645 16281 17085 18495 20655 20961 27135 27537 30753 33291 34935 45895 51255 55485 62883 81405 82611 92259 104805 137685 153765 156043 166455 188649 247833 276777 314415 413055 461295 468129 565947 743499 780215 943245 1239165 1383885 1404387 2230497 2340645 2829735 3717495 4213161 7021935 11152485 12639483 21065805 37918449 63197415 189592245