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202040641 = 11155311827
BaseRepresentation
bin11000000101011…
…10010101000001
3112002011201122201
430002232111001
5403210300031
632014233201
75002213525
oct1402562501
9462151581
10202040641
11a4057140
12577b5801
1332b2009a
141cb93d85
1512b0dd61
hexc0ae541

202040641 has 8 divisors (see below), whose sum is σ = 220568544. Its totient is φ = 183539520.

The previous prime is 202040633. The next prime is 202040659. The reversal of 202040641 is 146040202.

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

It is a cyclic number.

It is not a de Polignac number, because 202040641 - 23 = 202040633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202040681) 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, 11170 + ... + 22996.

It is an arithmetic number, because the mean of its divisors is an integer number (27571068).

Almost surely, 2202040641 is an apocalyptic number.

It is an amenable number.

202040641 is a deficient number, since it is larger than the sum of its proper divisors (18527903).

202040641 is a wasteful number, since it uses less digits than its factorization.

202040641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 202040641 is about 14214.1000770362. The cubic root of 202040641 is about 586.7857779774.

Adding to 202040641 its reverse (146040202), we get a palindrome (348080843).

The spelling of 202040641 in words is "two hundred two million, forty thousand, six hundred forty-one".

Divisors: 1 11 1553 11827 17083 130097 18367331 202040641