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29901982 = 2111359181
BaseRepresentation
bin111001000010…
…0010010011110
32002021011210211
41302010102132
530123330412
62544523034
7512106535
oct162042236
962234724
1029901982
1115973890
12a02047a
13626c4a6
143d8531c
152959ca7
hex1c8449e

29901982 has 8 divisors (see below), whose sum is σ = 48930552. Its totient is φ = 13591800.

The previous prime is 29901943. The next prime is 29901983. The reversal of 29901982 is 28910992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29901983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679569 + ... + 679612.

It is an arithmetic number, because the mean of its divisors is an integer number (6116319).

Almost surely, 229901982 is an apocalyptic number.

29901982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

29901982 is a deficient number, since it is larger than the sum of its proper divisors (19028570).

29901982 is a wasteful number, since it uses less digits than its factorization.

29901982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359194.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 29901982 is about 5468.2704761195. The cubic root of 29901982 is about 310.3844761318.

The spelling of 29901982 in words is "twenty-nine million, nine hundred one thousand, nine hundred eighty-two".

Divisors: 1 2 11 22 1359181 2718362 14950991 29901982