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29990470 = 252999047
BaseRepresentation
bin111001001100…
…1111001000110
32002102200012011
41302121321012
530134143340
62550444434
7512625526
oct162317106
962380164
1029990470
1115a24314
12a06371a
1362a0853
143da9686
1529760ea
hex1c99e46

29990470 has 8 divisors (see below), whose sum is σ = 53982864. Its totient is φ = 11996184.

The previous prime is 29990453. The next prime is 29990489. The reversal of 29990470 is 7409992.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499514 + ... + 1499533.

It is an arithmetic number, because the mean of its divisors is an integer number (6747858).

Almost surely, 229990470 is an apocalyptic number.

29990470 is a deficient number, since it is larger than the sum of its proper divisors (23992394).

29990470 is a wasteful number, since it uses less digits than its factorization.

29990470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999054.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 29990470 is about 5476.3555399554. The cubic root of 29990470 is about 310.6903449710.

The spelling of 29990470 in words is "twenty-nine million, nine hundred ninety thousand, four hundred seventy".

Divisors: 1 2 5 10 2999047 5998094 14995235 29990470