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10018380 = 2235166973
BaseRepresentation
bin100110001101…
…111001001100
3200211222122010
4212031321030
510031042010
6554421220
7151104051
oct46157114
920758563
1010018380
115722a59
123431810
1320ca048
14148b028
15d2d620
hex98de4c

10018380 has 24 divisors (see below), whose sum is σ = 28051632. Its totient is φ = 2671552.

The previous prime is 10018357. The next prime is 10018429. The reversal of 10018380 is 8381001.

It is a happy number.

10018380 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 83427 + ... + 83546.

It is an arithmetic number, because the mean of its divisors is an integer number (1168818).

Almost surely, 210018380 is an apocalyptic number.

10018380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10018380 is an abundant number, since it is smaller than the sum of its proper divisors (18033252).

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

10018380 is a wasteful number, since it uses less digits than its factorization.

10018380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166985 (or 166983 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 10018380 is about 3165.1824591957. The cubic root of 10018380 is about 215.5753832487.

Adding to 10018380 its reverse (8381001), we get a palindrome (18399381).

The spelling of 10018380 in words is "ten million, eighteen thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 166973 333946 500919 667892 834865 1001838 1669730 2003676 2504595 3339460 5009190 10018380