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213900099 = 3761166979
BaseRepresentation
bin11001011111111…
…01101101000011
3112220111020202220
430233331231003
5414224300344
633120342123
75205056310
oct1457755503
9486436686
10213900099
11aa817346
125b774943
133541310a
142059dd07
1513ba2c19
hexcbfdb43

213900099 has 16 divisors (see below), whose sum is σ = 331288320. Its totient is φ = 120224160.

The previous prime is 213900091. The next prime is 213900133. The reversal of 213900099 is 990009312.

It is not a de Polignac number, because 213900099 - 23 = 213900091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213900091) 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, 82209 + ... + 84770.

It is an arithmetic number, because the mean of its divisors is an integer number (20705520).

Almost surely, 2213900099 is an apocalyptic number.

213900099 is a deficient number, since it is larger than the sum of its proper divisors (117388221).

213900099 is a wasteful number, since it uses less digits than its factorization.

213900099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167050.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 213900099 is about 14625.3238938493. The cubic root of 213900099 is about 598.0493121231.

The spelling of 213900099 in words is "two hundred thirteen million, nine hundred thousand, ninety-nine".

Divisors: 1 3 7 21 61 183 427 1281 166979 500937 1168853 3506559 10185719 30557157 71300033 213900099