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29988426 = 23133710391
BaseRepresentation
bin111001001100…
…1011001001010
32002102120101110
41302121121022
530134112201
62550431150
7512616546
oct162313112
962376343
1029988426
1115a22826
12a0624b6
13629c940
143da8a26
1529756d6
hex1c9964a

29988426 has 32 divisors (see below), whose sum is σ = 66342528. Its totient is φ = 8976960.

The previous prime is 29988419. The next prime is 29988433. The reversal of 29988426 is 62488992.

It is an interprime number because it is at equal distance from previous prime (29988419) and next prime (29988433).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2310 + ... + 8081.

It is an arithmetic number, because the mean of its divisors is an integer number (2073204).

Almost surely, 229988426 is an apocalyptic number.

29988426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

29988426 is an abundant number, since it is smaller than the sum of its proper divisors (36354102).

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

29988426 is a wasteful number, since it uses less digits than its factorization.

29988426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10446.

The product of its digits is 497664, while the sum is 48.

The square root of 29988426 is about 5476.1689163137. The cubic root of 29988426 is about 310.6832864455.

The spelling of 29988426 in words is "twenty-nine million, nine hundred eighty-eight thousand, four hundred twenty-six".

Divisors: 1 2 3 6 13 26 37 39 74 78 111 222 481 962 1443 2886 10391 20782 31173 62346 135083 270166 384467 405249 768934 810498 1153401 2306802 4998071 9996142 14994213 29988426