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206312508204 = 2231112131288519
BaseRepresentation
bin1100000000100100101…
…1110000101100101100
3201201112021101022211120
43000021023300230230
511340012000230304
6234440105020540
720622421246005
oct3001113605454
9651467338746
10206312508204
117a55103a030
1233b99784750
13165bc07512a
149db25dc1ac
15557773c0d9
hex30092f0b2c

206312508204 has 48 divisors (see below), whose sum is σ = 525592462080. Its totient is φ = 62467352640.

The previous prime is 206312508203. The next prime is 206312508257. The reversal of 206312508204 is 402805213602.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (206312508203) 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, 484144 + ... + 804375.

It is an arithmetic number, because the mean of its divisors is an integer number (10949842960).

Almost surely, 2206312508204 is an apocalyptic number.

It is an amenable number.

206312508204 is an abundant number, since it is smaller than the sum of its proper divisors (319279953876).

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

206312508204 is a wasteful number, since it uses less digits than its factorization.

206312508204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289750 (or 1289748 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 206312508204 in words is "two hundred six billion, three hundred twelve million, five hundred eight thousand, two hundred four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1213 2426 3639 4852 7278 13343 14556 26686 40029 53372 80058 160116 1288519 2577038 3865557 5154076 7731114 14173709 15462228 28347418 42521127 56694836 85042254 170084508 1562973547 3125947094 4688920641 6251894188 9377841282 17192709017 18755682564 34385418034 51578127051 68770836068 103156254102 206312508204