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29970042 = 234995007
BaseRepresentation
bin111001001010…
…0111001111010
32002101122011120
41302110321322
530133020132
62550210110
7512512134
oct162247172
962348146
1029970042
1115a0aa33
12a053936
13629446b
143da2054
15297002c
hex1c94e7a

29970042 has 8 divisors (see below), whose sum is σ = 59940096. Its totient is φ = 9990012.

The previous prime is 29970041. The next prime is 29970047. The reversal of 29970042 is 24007992.

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

29970042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 29969985 and 29970012.

It is not an unprimeable number, because it can be changed into a prime (29970041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2497498 + ... + 2497509.

It is an arithmetic number, because the mean of its divisors is an integer number (7492512).

Almost surely, 229970042 is an apocalyptic number.

29970042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

29970042 is a wasteful number, since it uses less digits than its factorization.

29970042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4995012.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 29970042 is about 5474.4901132434. The cubic root of 29970042 is about 310.6197867354.

The spelling of 29970042 in words is "twenty-nine million, nine hundred seventy thousand, forty-two".

Divisors: 1 2 3 6 4995007 9990014 14985021 29970042