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202155468 = 22316846289
BaseRepresentation
bin11000000110010…
…10010111001100
3112002101120011120
430003022113030
5403222433333
632020520540
75003202354
oct1403122714
9462346146
10202155468
11a4125439
1257850150
1332b60428
141cbc3b64
1512b32db3
hexc0ca5cc

202155468 has 12 divisors (see below), whose sum is σ = 471696120. Its totient is φ = 67385152.

The previous prime is 202155467. The next prime is 202155493. The reversal of 202155468 is 864551202.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (202155467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8423133 + ... + 8423156.

It is an arithmetic number, because the mean of its divisors is an integer number (39308010).

Almost surely, 2202155468 is an apocalyptic number.

It is an amenable number.

202155468 is an abundant number, since it is smaller than the sum of its proper divisors (269540652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202155468 is a wasteful number, since it uses less digits than its factorization.

202155468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16846296 (or 16846294 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 202155468 is about 14218.1386967493. The cubic root of 202155468 is about 586.8969207811.

The spelling of 202155468 in words is "two hundred two million, one hundred fifty-five thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 16846289 33692578 50538867 67385156 101077734 202155468