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202406243 = 1337420803
BaseRepresentation
bin11000001000001…
…11100101100011
3112002212022011112
430010013211203
5403303444433
632030133535
75005265444
oct1404074543
9462768145
10202406243
11a4286896
12579512ab
1332c1a610
141cc4b2cb
1512b82348
hexc107963

202406243 has 8 divisors (see below), whose sum is σ = 223867728. Its totient is φ = 181786464.

The previous prime is 202406231. The next prime is 202406249. The reversal of 202406243 is 342604202.

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 202406243 - 210 = 202405219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202406249) 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, 209921 + ... + 210882.

It is an arithmetic number, because the mean of its divisors is an integer number (27983466).

Almost surely, 2202406243 is an apocalyptic number.

202406243 is a deficient number, since it is larger than the sum of its proper divisors (21461485).

202406243 is a wasteful number, since it uses less digits than its factorization.

202406243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420853.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 202406243 is about 14226.9548041737. The cubic root of 202406243 is about 587.1395034822.

The spelling of 202406243 in words is "two hundred two million, four hundred six thousand, two hundred forty-three".

Divisors: 1 13 37 481 420803 5470439 15569711 202406243