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103203020 = 2257370687
BaseRepresentation
bin1100010011011…
…00000011001100
321012012020221002
412021230003030
5202404444040
614123555432
72362132304
oct611540314
9235166832
10103203020
1153289a58
122a68bb78
13184c569b
14d9c6604
1590d8a15
hex626c0cc

103203020 has 24 divisors (see below), whose sum is σ = 219698304. Its totient is φ = 40715136.

The previous prime is 103203017. The next prime is 103203071. The reversal of 103203020 is 20302301.

It is a junction number, because it is equal to n+sod(n) for n = 103202992 and 103203010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33884 + ... + 36803.

It is an arithmetic number, because the mean of its divisors is an integer number (9154096).

Almost surely, 2103203020 is an apocalyptic number.

103203020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103203020 is an abundant number, since it is smaller than the sum of its proper divisors (116495284).

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

103203020 is a wasteful number, since it uses less digits than its factorization.

103203020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70769 (or 70767 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 103203020 is about 10158.8887187527. Note that the first 3 decimals coincide. The cubic root of 103203020 is about 469.0625951675.

Adding to 103203020 its reverse (20302301), we get a palindrome (123505321).

The spelling of 103203020 in words is "one hundred three million, two hundred three thousand, twenty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 70687 141374 282748 353435 706870 1413740 5160151 10320302 20640604 25800755 51601510 103203020