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202131110 = 25106119051
BaseRepresentation
bin11000000110001…
…00011010100110
3112002100022202102
430003010122212
5403221143420
632020212102
75003041346
oct1403043246
9462308672
10202131110
11a4109105
125783a032
1332b5230c
141cbb8d26
1512b2aa75
hexc0c46a6

202131110 has 16 divisors (see below), whose sum is σ = 364198032. Its totient is φ = 80772000.

The previous prime is 202131091. The next prime is 202131113. The reversal of 202131110 is 11131202.

It is a junction number, because it is equal to n+sod(n) for n = 202131091 and 202131100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202131113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085 + ... + 20135.

It is an arithmetic number, because the mean of its divisors is an integer number (22762377).

Almost surely, 2202131110 is an apocalyptic number.

202131110 is a deficient number, since it is larger than the sum of its proper divisors (162066922).

202131110 is a wasteful number, since it uses less digits than its factorization.

202131110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20119.

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

The square root of 202131110 is about 14217.2820890633. The cubic root of 202131110 is about 586.8733478193.

Adding to 202131110 its reverse (11131202), we get a palindrome (213262312).

The spelling of 202131110 in words is "two hundred two million, one hundred thirty-one thousand, one hundred ten".

Divisors: 1 2 5 10 1061 2122 5305 10610 19051 38102 95255 190510 20213111 40426222 101065555 202131110