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29955913 = 1319235273
BaseRepresentation
bin111001001000…
…1011101001001
32002100220210021
41302101131021
530132042123
62550020441
7512423011
oct162213511
962326707
1029955913
1115a00359
12a047721
13628abc0
143d9ac41
15296ac5d
hex1c91749

29955913 has 16 divisors (see below), whose sum is σ = 35441280. Its totient is φ = 25052544.

The previous prime is 29955911. The next prime is 29955917. The reversal of 29955913 is 31955992.

It is a cyclic number.

It is not a de Polignac number, because 29955913 - 21 = 29955911 is a prime.

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 29955913.

It is not an unprimeable number, because it can be changed into a prime (29955911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3045 + ... + 8317.

It is an arithmetic number, because the mean of its divisors is an integer number (2215080).

Almost surely, 229955913 is an apocalyptic number.

29955913 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29955913 is a deficient number, since it is larger than the sum of its proper divisors (5485367).

29955913 is a wasteful number, since it uses less digits than its factorization.

29955913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5328.

The product of its digits is 109350, while the sum is 43.

The square root of 29955913 is about 5473.1995213038. The cubic root of 29955913 is about 310.5709664632.

The spelling of 29955913 in words is "twenty-nine million, nine hundred fifty-five thousand, nine hundred thirteen".

Divisors: 1 13 19 23 247 299 437 5273 5681 68549 100187 121279 1302431 1576627 2304301 29955913