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189996462 = 2338342391
BaseRepresentation
bin10110101001100…
…01110110101110
3111020111211011000
423110301312232
5342114341322
630504141130
74464641355
oct1324616656
9436454130
10189996462
1198280177
12537677a6
1330493c56
141b33a99c
1511a303ac
hexb531dae

189996462 has 32 divisors (see below), whose sum is σ = 427311360. Its totient is φ = 62567640.

The previous prime is 189996439. The next prime is 189996473. The reversal of 189996462 is 264699981.

189996462 is a `hidden beast` number, since 1 + 8 + 99 + 96 + 462 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 189996399 and 189996408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16714 + ... + 25677.

It is an arithmetic number, because the mean of its divisors is an integer number (13353480).

Almost surely, 2189996462 is an apocalyptic number.

189996462 is an abundant number, since it is smaller than the sum of its proper divisors (237314898).

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

189996462 is a wasteful number, since it uses less digits than its factorization.

189996462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42485 (or 42479 counting only the distinct ones).

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

The square root of 189996462 is about 13783.9204147441. The cubic root of 189996462 is about 574.8861395218.

The spelling of 189996462 in words is "one hundred eighty-nine million, nine hundred ninety-six thousand, four hundred sixty-two".

Divisors: 1 2 3 6 9 18 27 54 83 166 249 498 747 1494 2241 4482 42391 84782 127173 254346 381519 763038 1144557 2289114 3518453 7036906 10555359 21110718 31666077 63332154 94998231 189996462