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109389246 = 2379230779
BaseRepresentation
bin1101000010100…
…10010110111110
321121211112211120
412201102112332
5211000423441
614504331410
72465536041
oct641222676
9247745746
10109389246
115682483a
1230773b66
1319880385
1410756c58
15990b966
hex68525be

109389246 has 16 divisors (see below), whose sum is σ = 221548800. Its totient is φ = 36001368.

The previous prime is 109389233. The next prime is 109389263. The reversal of 109389246 is 642983901.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109389198 and 109389207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114916 + ... + 115863.

It is an arithmetic number, because the mean of its divisors is an integer number (13846800).

Almost surely, 2109389246 is an apocalyptic number.

109389246 is an abundant number, since it is smaller than the sum of its proper divisors (112159554).

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

109389246 is a wasteful number, since it uses less digits than its factorization.

109389246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230863.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 109389246 is about 10458.9313985703. The cubic root of 109389246 is about 478.2535579289.

The spelling of 109389246 in words is "one hundred nine million, three hundred eighty-nine thousand, two hundred forty-six".

Divisors: 1 2 3 6 79 158 237 474 230779 461558 692337 1384674 18231541 36463082 54694623 109389246