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29997200 = 2452193947
BaseRepresentation
bin111001001101…
…1100010010000
32002110000102102
41302123202100
530134402300
62550535532
7512654252
oct162334220
962400372
1029997200
1115a29382
12a0675a8
1362a392c
143dabcd2
1529780d5
hex1c9b890

29997200 has 60 divisors (see below), whose sum is σ = 75880560. Its totient is φ = 11364480.

The previous prime is 29997179. The next prime is 29997217. The reversal of 29997200 is 279992.

It is a Harshad number since it is a multiple of its sum of digits (38).

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 11 ways as a sum of consecutive naturals, for example, 5627 + ... + 9573.

It is an arithmetic number, because the mean of its divisors is an integer number (1264676).

Almost surely, 229997200 is an apocalyptic number.

29997200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29997200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37940280).

29997200 is an abundant number, since it is smaller than the sum of its proper divisors (45883360).

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

29997200 is a wasteful number, since it uses less digits than its factorization.

29997200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984 (or 3973 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 29997200 is about 5476.9699652271. The cubic root of 29997200 is about 310.7135833490.

The spelling of 29997200 in words is "twenty-nine million, nine hundred ninety-seven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 38 40 50 76 80 95 100 152 190 200 304 380 400 475 760 950 1520 1900 3800 3947 7600 7894 15788 19735 31576 39470 63152 74993 78940 98675 149986 157880 197350 299972 315760 374965 394700 599944 749930 789400 1199888 1499860 1578800 1874825 2999720 3749650 5999440 7499300 14998600 29997200