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191054992 = 2423115167
BaseRepresentation
bin10110110001101…
…00010010010000
3111022111121011211
423120310102100
5342402224432
630542545504
74506640432
oct1330642220
9438447154
10191054992
1198933497
1253b98294
13307749bb
141b534652
1511b8dd47
hexb634490

191054992 has 20 divisors (see below), whose sum is σ = 370400896. Its totient is φ = 95467680.

The previous prime is 191054971. The next prime is 191055001. The reversal of 191054992 is 299450191.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34393 + ... + 39559.

Almost surely, 2191054992 is an apocalyptic number.

It is an amenable number.

191054992 is a deficient number, since it is larger than the sum of its proper divisors (179345904).

191054992 is a wasteful number, since it uses less digits than its factorization.

191054992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7486 (or 7480 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 191054992 is about 13822.2643586353. The cubic root of 191054992 is about 575.9517867309.

The spelling of 191054992 in words is "one hundred ninety-one million, fifty-four thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 2311 4622 5167 9244 10334 18488 20668 36976 41336 82672 11940937 23881874 47763748 95527496 191054992