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10303181320 = 235376961609
BaseRepresentation
bin10011001100001111…
…00001001000001000
3222121001020211201011
421212013201020020
5132100103300240
64422212533304
7513215411335
oct114607411010
928531224634
1010303181320
114407971693
121bb6621234
13c827602c3
146da52398c
154047e96ea
hex2661e1208

10303181320 has 32 divisors (see below), whose sum is σ = 23808706200. Its totient is φ = 4009886208.

The previous prime is 10303181299. The next prime is 10303181321. The reversal of 10303181320 is 2318130301.

It can be written as a sum of positive squares in 4 ways, for example, as 10256423076 + 46758244 = 101274^2 + 6838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10303181291 and 10303181300.

It is not an unprimeable number, because it can be changed into a prime (10303181321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3479325 + ... + 3482284.

Almost surely, 210303181320 is an apocalyptic number.

10303181320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10303181320 is an abundant number, since it is smaller than the sum of its proper divisors (13505524880).

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

10303181320 is a wasteful number, since it uses less digits than its factorization.

10303181320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6961657 (or 6961653 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 10303181320 in words is "ten billion, three hundred three million, one hundred eighty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 37 40 74 148 185 296 370 740 1480 6961609 13923218 27846436 34808045 55692872 69616090 139232180 257579533 278464360 515159066 1030318132 1287897665 2060636264 2575795330 5151590660 10303181320