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109772213 = 1747137387
BaseRepresentation
bin1101000101011…
…11110110110101
321122120000011112
412202233312311
5211100202323
614520444405
72502022415
oct642576665
9248500145
10109772213
1156a66541
1230919705
1319985795
1410816645
159985178
hex68afdb5

109772213 has 8 divisors (see below), whose sum is σ = 118703232. Its totient is φ = 101116096.

The previous prime is 109772203. The next prime is 109772233. The reversal of 109772213 is 312277901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109772213 - 26 = 109772149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109772213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109772203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67895 + ... + 69492.

It is an arithmetic number, because the mean of its divisors is an integer number (14837904).

Almost surely, 2109772213 is an apocalyptic number.

It is an amenable number.

109772213 is a deficient number, since it is larger than the sum of its proper divisors (8931019).

109772213 is a wasteful number, since it uses less digits than its factorization.

109772213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137451.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 109772213 is about 10477.2235348875. The cubic root of 109772213 is about 478.8110228600.

The spelling of 109772213 in words is "one hundred nine million, seven hundred seventy-two thousand, two hundred thirteen".

Divisors: 1 17 47 799 137387 2335579 6457189 109772213