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9997029 = 327222669
BaseRepresentation
bin100110001000…
…101011100101
3200210220100100
4212020223211
510024401104
6554134313
7150654600
oct46105345
920726310
109997029
115708a09
123421399
1320c0403
141483337
15d27139
hex988ae5

9997029 has 18 divisors (see below), whose sum is σ = 16798470. Its totient is φ = 5712336.

The previous prime is 9997007. The next prime is 9997033. The reversal of 9997029 is 9207999.

9997029 = T847 + T848 + ... + T873.

It can be written as a sum of positive squares in only one way, i.e., 9922500 + 74529 = 3150^2 + 273^2 .

It is not a de Polignac number, because 9997029 - 29 = 9996517 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997049) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 10894 + ... + 11775.

Almost surely, 29997029 is an apocalyptic number.

It is an amenable number.

9997029 is a deficient number, since it is larger than the sum of its proper divisors (6801441).

9997029 is a wasteful number, since it uses less digits than its factorization.

9997029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22689 (or 22679 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 9997029 is about 3161.8078689256. The cubic root of 9997029 is about 215.4221308050.

It can be divided in two parts, 99970 and 29, that added together give a palindrome (99999).

The spelling of 9997029 in words is "nine million, nine hundred ninety-seven thousand, twenty-nine".

Divisors: 1 3 7 9 21 49 63 147 441 22669 68007 158683 204021 476049 1110781 1428147 3332343 9997029