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29978034 = 237368443
BaseRepresentation
bin111001001011…
…0110110110010
32002102001010120
41302112312302
530133244114
62550311110
7512544342
oct162266662
962361116
1029978034
1115a15a39
12a058496
136297ca8
143da4d22
1529725a9
hex1c96db2

29978034 has 16 divisors (see below), whose sum is σ = 60778272. Its totient is φ = 9855648.

The previous prime is 29978033. The next prime is 29978041. The reversal of 29978034 is 43087992.

It is not an unprimeable number, because it can be changed into a prime (29978033) 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, 33784 + ... + 34659.

It is an arithmetic number, because the mean of its divisors is an integer number (3798642).

Almost surely, 229978034 is an apocalyptic number.

29978034 is an abundant number, since it is smaller than the sum of its proper divisors (30800238).

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

29978034 is a wasteful number, since it uses less digits than its factorization.

29978034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68521.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 29978034 is about 5475.2199955801. The cubic root of 29978034 is about 310.6473948905.

Subtracting from 29978034 its sum of digits (42), we obtain a palindrome (29977992).

The spelling of 29978034 in words is "twenty-nine million, nine hundred seventy-eight thousand, thirty-four".

Divisors: 1 2 3 6 73 146 219 438 68443 136886 205329 410658 4996339 9992678 14989017 29978034