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29924680 = 2354211777
BaseRepresentation
bin111001000100…
…1110101001000
32002022022221111
41302021311020
530130042210
62545220104
7512232652
oct162116510
962268844
1029924680
1115989945
12a031634
136279916
143d8d6d2
15296188a
hex1c89d48

29924680 has 32 divisors (see below), whose sum is σ = 67528440. Its totient is φ = 11934720.

The previous prime is 29924663. The next prime is 29924747. The reversal of 29924680 is 8642992.

It can be written as a sum of positive squares in 4 ways, for example, as 13972644 + 15952036 = 3738^2 + 3994^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15952 + ... + 17728.

Almost surely, 229924680 is an apocalyptic number.

29924680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29924680 is an abundant number, since it is smaller than the sum of its proper divisors (37603760).

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

29924680 is a wasteful number, since it uses less digits than its factorization.

29924680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209 (or 2205 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 29924680 is about 5470.3455101118. The cubic root of 29924680 is about 310.4629918301.

The spelling of 29924680 in words is "twenty-nine million, nine hundred twenty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 421 842 1684 1777 2105 3368 3554 4210 7108 8420 8885 14216 16840 17770 35540 71080 748117 1496234 2992468 3740585 5984936 7481170 14962340 29924680