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204401210412 = 223719712352019
BaseRepresentation
bin1011111001011101000…
…0101111010000101100
3201112121001221100011110
42332113100233100230
511322103202213122
6233522311152020
720524152423150
oct2762720572054
9645531840143
10204401210412
1179760177783
1233745675610
13163760b70a9
149c70833060
1554b4a4b90c
hex2f9742f42c

204401210412 has 48 divisors (see below), whose sum is σ = 547836791040. Its totient is φ = 58103892672.

The previous prime is 204401210411. The next prime is 204401210437. The reversal of 204401210412 is 214012104402.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (204401210411) 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, 6159462 + ... + 6192557.

It is an arithmetic number, because the mean of its divisors is an integer number (11413266480).

Almost surely, 2204401210412 is an apocalyptic number.

It is an amenable number.

204401210412 is an abundant number, since it is smaller than the sum of its proper divisors (343435580628).

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

204401210412 is a wasteful number, since it uses less digits than its factorization.

204401210412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12352230 (or 12352228 counting only the distinct ones).

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

Adding to 204401210412 its reverse (214012104402), we get a palindrome (418413314814).

The spelling of 204401210412 in words is "two hundred four billion, four hundred one million, two hundred ten thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 197 394 591 788 1182 1379 2364 2758 4137 5516 8274 16548 12352019 24704038 37056057 49408076 74112114 86464133 148224228 172928266 259392399 345856532 518784798 1037569596 2433347743 4866695486 7300043229 9733390972 14600086458 17033434201 29200172916 34066868402 51100302603 68133736804 102200605206 204401210412