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210243141 = 3371109673
BaseRepresentation
bin11001000100000…
…00111001000101
3112122121110101000
430202000321011
5412310240031
632510123513
75132015523
oct1442007105
9478543330
10210243141
11a8749869
125a4b0599
1334732734
141dccb313
15136ce3e6
hexc880e45

210243141 has 16 divisors (see below), whose sum is σ = 315861120. Its totient is φ = 138186720.

The previous prime is 210243133. The next prime is 210243157. The reversal of 210243141 is 141342012.

210243141 = T2398 + T2399 + ... + T2468.

It is not a de Polignac number, because 210243141 - 23 = 210243133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210243191) 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, 52920 + ... + 56753.

It is an arithmetic number, because the mean of its divisors is an integer number (19741320).

Almost surely, 2210243141 is an apocalyptic number.

It is an amenable number.

210243141 is a deficient number, since it is larger than the sum of its proper divisors (105617979).

210243141 is a wasteful number, since it uses less digits than its factorization.

210243141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109753 (or 109747 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 210243141 is about 14499.7634808296. The cubic root of 210243141 is about 594.6215053912.

Adding to 210243141 its reverse (141342012), we get a palindrome (351585153).

The spelling of 210243141 in words is "two hundred ten million, two hundred forty-three thousand, one hundred forty-one".

Divisors: 1 3 9 27 71 213 639 1917 109673 329019 987057 2961171 7786783 23360349 70081047 210243141