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10343988 = 2232287333
BaseRepresentation
bin100111011101…
…011000110100
3201110112021200
4213131120310
510122001423
61005412500
7153631254
oct47353064
921415250
1010343988
115925656
12356a130
1321b2305
141533964
15d94d43
hex9dd634

10343988 has 18 divisors (see below), whose sum is σ = 26147394. Its totient is φ = 3447984.

The previous prime is 10343947. The next prime is 10344001. The reversal of 10343988 is 88934301.

It can be written as a sum of positive squares in only one way, i.e., 9998244 + 345744 = 3162^2 + 588^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 287333 = 10343988 / (1 + 0 + 3 + 4 + 3 + 9 + 8 + 8).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 143631 + ... + 143702.

It is an arithmetic number, because the mean of its divisors is an integer number (1452633).

Almost surely, 210343988 is an apocalyptic number.

10343988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10343988 is an abundant number, since it is smaller than the sum of its proper divisors (15803406).

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

10343988 is a wasteful number, since it uses less digits than its factorization.

10343988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287343 (or 287338 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 10343988 is about 3216.2070828851. The cubic root of 10343988 is about 217.8860049858.

The spelling of 10343988 in words is "ten million, three hundred forty-three thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 287333 574666 861999 1149332 1723998 2585997 3447996 5171994 10343988