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512204142 = 23103982163
BaseRepresentation
bin11110100001111…
…001110101101110
31022200210122222210
4132201321311232
52022111013032
6122454151250
715456443352
oct3641716556
91280718883
10512204142
1124314260a
12123652526
1382168c98
144c051462
152ee792cc
hex1e879d6e

512204142 has 16 divisors (see below), whose sum is σ = 1025406720. Its totient is φ = 170568312.

The previous prime is 512204123. The next prime is 512204149. The reversal of 512204142 is 241402215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512204149) 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, 34848 + ... + 47315.

It is an arithmetic number, because the mean of its divisors is an integer number (64087920).

Almost surely, 2512204142 is an apocalyptic number.

512204142 is an abundant number, since it is smaller than the sum of its proper divisors (513202578).

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

512204142 is a wasteful number, since it uses less digits than its factorization.

512204142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83207.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 512204142 is about 22631.9274919305. The cubic root of 512204142 is about 800.1063098305.

Adding to 512204142 its reverse (241402215), we get a palindrome (753606357).

The spelling of 512204142 in words is "five hundred twelve million, two hundred four thousand, one hundred forty-two".

Divisors: 1 2 3 6 1039 2078 3117 6234 82163 164326 246489 492978 85367357 170734714 256102071 512204142