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109838490 = 2351272227
BaseRepresentation
bin1101000110000…
…00000010011010
321122200101002020
412203000002122
5211104312430
614522115310
72502416556
oct643000232
9248611066
10109838490
1157001313
123094bb36
13199a99b8
1410832866
159999b10
hex68c009a

109838490 has 48 divisors (see below), whose sum is σ = 266874912. Its totient is φ = 28931616.

The previous prime is 109838473. The next prime is 109838497. The reversal of 109838490 is 94838901.

It is not an unprimeable number, because it can be changed into a prime (109838497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 483757 + ... + 483983.

It is an arithmetic number, because the mean of its divisors is an integer number (5559894).

Almost surely, 2109838490 is an apocalyptic number.

109838490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109838490 is an abundant number, since it is smaller than the sum of its proper divisors (157036422).

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

109838490 is a wasteful number, since it uses less digits than its factorization.

109838490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 109838490 is about 10480.3859661751. The cubic root of 109838490 is about 478.9073671374.

The spelling of 109838490 in words is "one hundred nine million, eight hundred thirty-eight thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 127 227 254 381 454 635 681 762 1135 1270 1362 1905 2270 3405 3810 6810 16129 28829 32258 48387 57658 80645 86487 96774 144145 161290 172974 241935 288290 432435 483870 864870 3661283 7322566 10983849 18306415 21967698 36612830 54919245 109838490