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103103890 = 25197199263
BaseRepresentation
bin1100010010100…
…11110110010010
321012000012221121
412021103312102
5202343311030
614121512454
72361240301
oct611236622
9235005847
10103103890
115322152a
122a64272a
131848c526
14d99c438
1590b947a
hex6253d92

103103890 has 32 divisors (see below), whose sum is σ = 188179200. Its totient is φ = 40670784.

The previous prime is 103103851. The next prime is 103103893. The reversal of 103103890 is 98301301.

It is not an unprimeable number, because it can be changed into a prime (103103893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391899 + ... + 392161.

It is an arithmetic number, because the mean of its divisors is an integer number (5880600).

Almost surely, 2103103890 is an apocalyptic number.

103103890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103103890 is a deficient number, since it is larger than the sum of its proper divisors (85075310).

103103890 is a wasteful number, since it uses less digits than its factorization.

103103890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 103103890 is about 10154.0085680484. The cubic root of 103103890 is about 468.9123635473.

The spelling of 103103890 in words is "one hundred three million, one hundred three thousand, eight hundred ninety".

Divisors: 1 2 5 10 197 199 263 394 398 526 985 995 1315 1970 1990 2630 39203 51811 52337 78406 103622 104674 196015 259055 261685 392030 518110 523370 10310389 20620778 51551945 103103890