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29916906 = 23171943359
BaseRepresentation
bin111001000011…
…1111011101010
32002021221021120
41302013323222
530124320111
62545120110
7512201205
oct162077352
962257246
1029916906
1115984018
12a029036
136276216
143d8a93c
15295e406
hex1c87eea

29916906 has 64 divisors (see below), whose sum is σ = 68428800. Its totient is φ = 8660736.

The previous prime is 29916899. The next prime is 29916917. The reversal of 29916906 is 60961992.

It is a happy number.

It is a super-2 number, since 2×299169062 = 1790042529225672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83155 + ... + 83513.

It is an arithmetic number, because the mean of its divisors is an integer number (1069200).

Almost surely, 229916906 is an apocalyptic number.

29916906 is the 2924-th nonagonal number.

29916906 is an abundant number, since it is smaller than the sum of its proper divisors (38511894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29916906 is a wasteful number, since it uses less digits than its factorization.

29916906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 29916906 is about 5469.6349055490. The cubic root of 29916906 is about 310.4361049001.

It can be divided in two parts, 299 and 16906, that added together give a triangular number (17205 = T185).

The spelling of 29916906 in words is "twenty-nine million, nine hundred sixteen thousand, nine hundred six".

Divisors: 1 2 3 6 17 19 34 38 43 51 57 86 102 114 129 258 323 359 646 718 731 817 969 1077 1462 1634 1938 2154 2193 2451 4386 4902 6103 6821 12206 13642 13889 15437 18309 20463 27778 30874 36618 40926 41667 46311 83334 92622 115957 231914 262429 293303 347871 524858 586606 695742 787287 879909 1574574 1759818 4986151 9972302 14958453 29916906