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203231402412 = 223432831391729
BaseRepresentation
bin1011110101000110001…
…0010001100110101100
3201102120112201221021020
42331101202101212230
511312204214334122
6233210242134140
720453156263203
oct2752142214654
9642515657236
10203231402412
117920a912705
1233479951350
131621a9340cc
149b9d32223a
155446ec6c5c
hex2f518919ac

203231402412 has 48 divisors (see below), whose sum is σ = 486949626240. Its totient is φ = 65934505728.

The previous prime is 203231402329. The next prime is 203231402441. The reversal of 203231402412 is 214204132302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549837 + ... + 841892.

It is an arithmetic number, because the mean of its divisors is an integer number (10144783880).

Almost surely, 2203231402412 is an apocalyptic number.

It is an amenable number.

203231402412 is an abundant number, since it is smaller than the sum of its proper divisors (283718223828).

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

203231402412 is a wasteful number, since it uses less digits than its factorization.

203231402412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392062 (or 1392060 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203231402412 its reverse (214204132302), we get a palindrome (417435534714).

The spelling of 203231402412 in words is "two hundred three billion, two hundred thirty-one million, four hundred two thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 283 516 566 849 1132 1698 3396 12169 24338 36507 48676 73014 146028 1391729 2783458 4175187 5566916 8350374 16700748 59844347 119688694 179533041 239377388 359066082 393859307 718132164 787718614 1181577921 1575437228 2363155842 4726311684 16935950201 33871900402 50807850603 67743800804 101615701206 203231402412