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188952969211 = 1092581967141
BaseRepresentation
bin1010111111111001111…
…0010111111111111011
3200001201110100101010221
42233332132113333323
511043433430003321
6222445341520511
716436300511106
oct2577636277773
9601643311127
10188952969211
1173153030496
1230753b73137
1314a83738a76
149206c8b73d
154dad6e4e41
hex2bfe797ffb

188952969211 has 8 divisors (see below), whose sum is σ = 190696708400. Its totient is φ = 187209416160.

The previous prime is 188952969209. The next prime is 188952969251. The reversal of 188952969211 is 112969259881.

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 188952969211 - 21 = 188952969209 is a prime.

It is a super-3 number, since 3×1889529692113 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 188952969211.

It is not an unprimeable number, because it can be changed into a prime (188952969251) 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, 2780701 + ... + 2847841.

It is an arithmetic number, because the mean of its divisors is an integer number (23837088550).

Almost surely, 2188952969211 is an apocalyptic number.

188952969211 is a deficient number, since it is larger than the sum of its proper divisors (1743739189).

188952969211 is a wasteful number, since it uses less digits than its factorization.

188952969211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93069.

The product of its digits is 5598720, while the sum is 61.

The spelling of 188952969211 in words is "one hundred eighty-eight billion, nine hundred fifty-two million, nine hundred sixty-nine thousand, two hundred eleven".

Divisors: 1 109 25819 67141 2814271 7318369 1733513479 188952969211