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29420819 = 298911399
BaseRepresentation
bin111000000111…
…0110100010011
32001100201202222
41300032310103
530012431234
62530331255
7505033661
oct160166423
961321688
1029420819
111567532a
129a29b2b
13613148c
143c9bc31
1528b242e
hex1c0ed13

29420819 has 8 divisors (see below), whose sum is σ = 30780000. Its totient is φ = 28084672.

The previous prime is 29420813. The next prime is 29420843. The reversal of 29420819 is 91802492.

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

It is a cyclic number.

It is not a de Polignac number, because 29420819 - 28 = 29420563 is a prime.

It is a super-2 number, since 2×294208192 = 1731169181261522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29420813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3119 + ... + 8280.

It is an arithmetic number, because the mean of its divisors is an integer number (3847500).

Almost surely, 229420819 is an apocalyptic number.

29420819 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

29420819 is a deficient number, since it is larger than the sum of its proper divisors (1359181).

29420819 is a wasteful number, since it uses less digits than its factorization.

29420819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11517.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 29420819 is about 5424.0961459030. The cubic root of 29420819 is about 308.7106314438.

The spelling of 29420819 in words is "twenty-nine million, four hundred twenty thousand, eight hundred nineteen".

Divisors: 1 29 89 2581 11399 330571 1014511 29420819