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109402030 = 25231313631
BaseRepresentation
bin1101000010101…
…01011110101110
321121212012101001
412201111132232
5211001331110
614504510514
72465621233
oct641253656
9247765331
10109402030
1156833401
123077b43a
131988613a
141075b78a
15991063a
hex68557ae

109402030 has 32 divisors (see below), whose sum is σ = 207111168. Its totient is φ = 41527200.

The previous prime is 109402009. The next prime is 109402037. The reversal of 109402030 is 30204901.

It is a junction number, because it is equal to n+sod(n) for n = 109401989 and 109402007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109402037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28315 + ... + 31945.

It is an arithmetic number, because the mean of its divisors is an integer number (6472224).

Almost surely, 2109402030 is an apocalyptic number.

109402030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109402030 is a deficient number, since it is larger than the sum of its proper divisors (97709138).

109402030 is a wasteful number, since it uses less digits than its factorization.

109402030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3792.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 109402030 is about 10459.5425330174. The cubic root of 109402030 is about 478.2721878996.

Adding to 109402030 its reverse (30204901), we get a palindrome (139606931).

The spelling of 109402030 in words is "one hundred nine million, four hundred two thousand, thirty".

Divisors: 1 2 5 10 23 46 115 131 230 262 655 1310 3013 3631 6026 7262 15065 18155 30130 36310 83513 167026 417565 475661 835130 951322 2378305 4756610 10940203 21880406 54701015 109402030