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29992113 = 344379109
BaseRepresentation
bin111001001101…
…0010010110001
32002102202110000
41302122102301
530134221423
62550500213
7512633364
oct162322261
962382400
1029992113
1115a25578
12a064669
1362a1518
143daa0db
152976843
hex1c9a4b1

29992113 has 40 divisors (see below), whose sum is σ = 46851200. Its totient is φ = 19105632.

The previous prime is 29992111. The next prime is 29992129. The reversal of 29992113 is 31129992.

It is a happy number.

It is not a de Polignac number, because 29992113 - 21 = 29992111 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

Its product of digits (8748) is a multiple of the sum of its prime factors (243).

It is not an unprimeable number, because it can be changed into a prime (29992111) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 275103 + ... + 275211.

It is an arithmetic number, because the mean of its divisors is an integer number (1171280).

Almost surely, 229992113 is an apocalyptic number.

It is an amenable number.

29992113 is a deficient number, since it is larger than the sum of its proper divisors (16859087).

29992113 is a wasteful number, since it uses less digits than its factorization.

29992113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 234 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 29992113 is about 5476.5055464228. The cubic root of 29992113 is about 310.6960184946.

The spelling of 29992113 in words is "twenty-nine million, nine hundred ninety-two thousand, one hundred thirteen".

Divisors: 1 3 9 27 43 79 81 109 129 237 327 387 711 981 1161 2133 2943 3397 3483 4687 6399 8611 8829 10191 14061 25833 30573 42183 77499 91719 126549 232497 275157 370273 379647 697491 1110819 3332457 9997371 29992113