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1055423141 = 1117944873
BaseRepresentation
bin111110111010000…
…111101010100101
32201112222001100222
4332322013222211
54130142020031
6252421214125
735103643253
oct7672075245
92645861328
101055423141
114a1839033
12255561345
1313a873b46
14a02575d3
15629cce7b
hex3ee87aa5

1055423141 has 4 divisors (see below), whose sum is σ = 1056369132. Its totient is φ = 1054477152.

The previous prime is 1055423137. The next prime is 1055423177. The reversal of 1055423141 is 1413245501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1413245501 = 9949142049.

It can be written as a sum of positive squares in 2 ways, for example, as 266375041 + 789048100 = 16321^2 + 28090^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055423141 - 22 = 1055423137 is a prime.

It is a super-2 number, since 2×10554231412 = 2227836013116611762, 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 1055423141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055423111) 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, 471320 + ... + 473553.

It is an arithmetic number, because the mean of its divisors is an integer number (264092283).

Almost surely, 21055423141 is an apocalyptic number.

It is an amenable number.

1055423141 is a deficient number, since it is larger than the sum of its proper divisors (945991).

1055423141 is an equidigital number, since it uses as much as digits as its factorization.

1055423141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945990.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1055423141 is about 32487.2766017713. The cubic root of 1055423141 is about 1018.1432133706.

Adding to 1055423141 its reverse (1413245501), we get a palindrome (2468668642).

The spelling of 1055423141 in words is "one billion, fifty-five million, four hundred twenty-three thousand, one hundred forty-one".

Divisors: 1 1117 944873 1055423141