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10381330 = 257314221
BaseRepresentation
bin100111100110…
…100000010010
3201112102111201
4213212200102
510124200310
61010301414
7154145161
oct47464022
921472451
1010381330
115950713
12358786a
1321c62cb
1415433d8
15da0e3a
hex9e6812

10381330 has 16 divisors (see below), whose sum is σ = 18943704. Its totient is φ = 4095360.

The previous prime is 10381321. The next prime is 10381337. The reversal of 10381330 is 3318301.

It can be written as a sum of positive squares in 4 ways, for example, as 9259849 + 1121481 = 3043^2 + 1059^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10381298 and 10381307.

It is not an unprimeable number, because it can be changed into a prime (10381337) 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, 6381 + ... + 7840.

Almost surely, 210381330 is an apocalyptic number.

10381330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10381330 is a deficient number, since it is larger than the sum of its proper divisors (8562374).

10381330 is a wasteful number, since it uses less digits than its factorization.

10381330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14301.

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

The square root of 10381330 is about 3222.0071384154. The cubic root of 10381330 is about 218.1478810325.

Adding to 10381330 its reverse (3318301), we get a palindrome (13699631).

The spelling of 10381330 in words is "ten million, three hundred eighty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 73 146 365 730 14221 28442 71105 142210 1038133 2076266 5190665 10381330