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29947300 = 2252299473
BaseRepresentation
bin111001000111…
…1010110100100
32002100110222021
41302033112210
530131303200
62545512524
7512355625
oct162172644
962313867
1029947300
11159a4939
12a042744
136286cc6
143d97a4c
15296841a
hex1c8f5a4

29947300 has 18 divisors (see below), whose sum is σ = 64985858. Its totient is φ = 11978880.

The previous prime is 29947297. The next prime is 29947331. The reversal of 29947300 is 374992.

It can be written as a sum of positive squares in 3 ways, for example, as 7365796 + 22581504 = 2714^2 + 4752^2 .

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 5 ways as a sum of consecutive naturals, for example, 149637 + ... + 149836.

Almost surely, 229947300 is an apocalyptic number.

29947300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29947300 is an abundant number, since it is smaller than the sum of its proper divisors (35038558).

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

29947300 is a wasteful number, since it uses less digits than its factorization.

29947300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299487 (or 299480 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 29947300 is about 5472.4126306411. The cubic root of 29947300 is about 310.5411982263.

The spelling of 29947300 in words is "twenty-nine million, nine hundred forty-seven thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 299473 598946 1197892 1497365 2994730 5989460 7486825 14973650 29947300