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29999307 = 3131097057
BaseRepresentation
bin111001001110…
…0000011001011
32002110010022110
41302130003023
530134434212
62550553403
7512663352
oct162340313
962403273
1029999307
1115a2aa18
12a068863
1362a4890
143dac999
152978a3c
hex1c9c0cb

29999307 has 16 divisors (see below), whose sum is σ = 43477280. Its totient is φ = 18289152.

The previous prime is 29999297. The next prime is 29999327. The reversal of 29999307 is 70399992.

It is a happy number.

It is not a de Polignac number, because 29999307 - 212 = 29995211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29999327) 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, 723 + ... + 7779.

It is an arithmetic number, because the mean of its divisors is an integer number (2717330).

Almost surely, 229999307 is an apocalyptic number.

29999307 is a deficient number, since it is larger than the sum of its proper divisors (13477973).

29999307 is a wasteful number, since it uses less digits than its factorization.

29999307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182.

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 29999307 is about 5477.1623127309. The cubic root of 29999307 is about 310.7208580079.

The spelling of 29999307 in words is "twenty-nine million, nine hundred ninety-nine thousand, three hundred seven".

Divisors: 1 3 13 39 109 327 1417 4251 7057 21171 91741 275223 769213 2307639 9999769 29999307