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10550143 = 37285139
BaseRepresentation
bin101000001111…
…101101111111
3201212000002001
4220033231333
510200101033
61014043131
7155450302
oct50175577
921760061
1010550143
115a5652a
1236494a7
1322550b6
141588b39
15dd5e7d
hexa0fb7f

10550143 has 4 divisors (see below), whose sum is σ = 10835320. Its totient is φ = 10264968.

The previous prime is 10550131. The next prime is 10550147. The reversal of 10550143 is 34105501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34105501 = 107318743.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10550143 is a prime.

It is a super-2 number, since 2×105501432 = 222611034640898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10550143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10550147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142533 + ... + 142606.

It is an arithmetic number, because the mean of its divisors is an integer number (2708830).

Almost surely, 210550143 is an apocalyptic number.

10550143 is a deficient number, since it is larger than the sum of its proper divisors (285177).

10550143 is an equidigital number, since it uses as much as digits as its factorization.

10550143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285176.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 10550143 is about 3248.0983667371. The cubic root of 10550143 is about 219.3239785513.

Adding to 10550143 its reverse (34105501), we get a palindrome (44655644).

The spelling of 10550143 in words is "ten million, five hundred fifty thousand, one hundred forty-three".

Divisors: 1 37 285139 10550143