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29990908 = 227497727
BaseRepresentation
bin111001001100…
…1111111111100
32002102200210101
41302121333330
530134202113
62550450444
7512630023
oct162317774
962380711
1029990908
1115a24682
12a063a24
1362a0acc
143da98ba
1529762dd
hex1c99ffc

29990908 has 6 divisors (see below), whose sum is σ = 52484096. Its totient is φ = 14995452.

The previous prime is 29990903. The next prime is 29990927. The reversal of 29990908 is 80909992.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29990903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3748860 + ... + 3748867.

Almost surely, 229990908 is an apocalyptic number.

It is an amenable number.

29990908 is a deficient number, since it is larger than the sum of its proper divisors (22493188).

29990908 is a wasteful number, since it uses less digits than its factorization.

29990908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7497731 (or 7497729 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 29990908 is about 5476.3955299083. The cubic root of 29990908 is about 310.6918574705.

The spelling of 29990908 in words is "twenty-nine million, nine hundred ninety thousand, nine hundred eight".

Divisors: 1 2 4 7497727 14995454 29990908