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200311121 = 8312371951
BaseRepresentation
bin10111111000010…
…00000101010001
3111221220212012102
423330020011101
5402234423441
631513210145
74651421303
oct1374100521
9457825172
10200311121
11a308578a
1257100955
1332665aba
141c863973
15128bb69b
hexbf08151

200311121 has 8 divisors (see below), whose sum is σ = 202992384. Its totient is φ = 197636400.

The previous prime is 200311099. The next prime is 200311127. The reversal of 200311121 is 121113002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-200311121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200311127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101696 + ... + 103646.

It is an arithmetic number, because the mean of its divisors is an integer number (25374048).

Almost surely, 2200311121 is an apocalyptic number.

It is an amenable number.

200311121 is a deficient number, since it is larger than the sum of its proper divisors (2681263).

200311121 is a wasteful number, since it uses less digits than its factorization.

200311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 200311121 is about 14153.1311376670. The cubic root of 200311121 is about 585.1066316448.

Adding to 200311121 its reverse (121113002), we get a palindrome (321424123).

The spelling of 200311121 in words is "two hundred million, three hundred eleven thousand, one hundred twenty-one".

Divisors: 1 83 1237 1951 102671 161933 2413387 200311121