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1205414142 = 23661303937
BaseRepresentation
bin100011111011001…
…0010100011111110
310010000012101100020
41013312102203332
54432041223032
6315340113010
741604564642
oct10766224376
93100171306
101205414142
11569474539
12297835766
1316296b90a
14b613cc22
1570c59b2c
hex47d928fe

1205414142 has 16 divisors (see below), whose sum is σ = 2414483472. Its totient is φ = 401195520.

The previous prime is 1205414113. The next prime is 1205414143. The reversal of 1205414142 is 2414145021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205414143) 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, 148003 + ... + 155934.

It is an arithmetic number, because the mean of its divisors is an integer number (150905217).

Almost surely, 21205414142 is an apocalyptic number.

1205414142 is an abundant number, since it is smaller than the sum of its proper divisors (1209069330).

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

1205414142 is a wasteful number, since it uses less digits than its factorization.

1205414142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304603.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1205414142 is about 34719.0746132439. The cubic root of 1205414142 is about 1064.2543339983.

Adding to 1205414142 its reverse (2414145021), we get a palindrome (3619559163).

The spelling of 1205414142 in words is "one billion, two hundred five million, four hundred fourteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 661 1322 1983 3966 303937 607874 911811 1823622 200902357 401804714 602707071 1205414142