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204040141212 = 223503265912713
BaseRepresentation
bin1011111000000110111…
…1010111100110011100
3201111122220112010100010
42332001233113212130
511320333234004322
6233422412203220
720512206404235
oct2760157274634
9644586463303
10204040141212
1179595382086
1233664769510
131631935678b
149c388c408c
155492ec820c
hex2f81bd799c

204040141212 has 48 divisors (see below), whose sum is σ = 477257114880. Its totient is φ = 67847299968.

The previous prime is 204040141211. The next prime is 204040141223. The reversal of 204040141212 is 212141040402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204040141211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16043368 + ... + 16056080.

It is an arithmetic number, because the mean of its divisors is an integer number (9942856560).

Almost surely, 2204040141212 is an apocalyptic number.

It is an amenable number.

204040141212 is an abundant number, since it is smaller than the sum of its proper divisors (273216973668).

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

204040141212 is a wasteful number, since it uses less digits than its factorization.

204040141212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15882 (or 15880 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 204040141212 its reverse (212141040402), we get a palindrome (416181181614).

The spelling of 204040141212 in words is "two hundred four billion, forty million, one hundred forty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 503 1006 1509 2012 2659 3018 5318 6036 7977 10636 12713 15954 25426 31908 38139 50852 76278 152556 1337477 2674954 4012431 5349908 6394639 8024862 12789278 16049724 19183917 25578556 33803867 38367834 67607734 76735668 101411601 135215468 202823202 405646404 17003345101 34006690202 51010035303 68013380404 102020070606 204040141212