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202044121 = 2319874421
BaseRepresentation
bin11000000101011…
…11001011011001
3112002011220102121
430002233023121
5403210402441
632014301241
75002226626
oct1402571331
9462156377
10202044121
11a4059814
12577b7821
1332b21846
141cb9534d
1512b0edd1
hexc0af2d9

202044121 has 8 divisors (see below), whose sum is σ = 210982464. Its totient is φ = 193118640.

The previous prime is 202044107. The next prime is 202044169. The reversal of 202044121 is 121440202.

202044121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202044121 - 27 = 202043993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202044095 and 202044104.

It is not an unprimeable number, because it can be changed into a prime (202044221) 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, 43491 + ... + 47911.

It is an arithmetic number, because the mean of its divisors is an integer number (26372808).

Almost surely, 2202044121 is an apocalyptic number.

It is an amenable number.

202044121 is a deficient number, since it is larger than the sum of its proper divisors (8938343).

202044121 is a wasteful number, since it uses less digits than its factorization.

202044121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6431.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 202044121 is about 14214.2224901681. Note that the first 3 decimals coincide. The cubic root of 202044121 is about 586.7891469411.

Adding to 202044121 its reverse (121440202), we get a palindrome (323484323).

The spelling of 202044121 in words is "two hundred two million, forty-four thousand, one hundred twenty-one".

Divisors: 1 23 1987 4421 45701 101683 8784527 202044121