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202220401 = 1915496871
BaseRepresentation
bin11000000110110…
…10001101110001
3112002111212020111
430003122031301
5403232023101
632022141321
75003562565
oct1403321561
9462455214
10202220401
11a416a1a9
1257881841
1332b83b56
141cbdd6a5
1512b47251
hexc0da371

202220401 has 8 divisors (see below), whose sum is σ = 213032000. Its totient is φ = 191425680.

The previous prime is 202220351. The next prime is 202220407. The reversal of 202220401 is 104022202.

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 202220401 - 213 = 202212209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202220407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25996 + ... + 32866.

It is an arithmetic number, because the mean of its divisors is an integer number (26629000).

Almost surely, 2202220401 is an apocalyptic number.

It is an amenable number.

202220401 is a deficient number, since it is larger than the sum of its proper divisors (10811599).

202220401 is a wasteful number, since it uses less digits than its factorization.

202220401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 202220401 is about 14220.4219698292. The cubic root of 202220401 is about 586.9597517937.

Adding to 202220401 its reverse (104022202), we get a palindrome (306242603).

The spelling of 202220401 in words is "two hundred two million, two hundred twenty thousand, four hundred one".

Divisors: 1 19 1549 6871 29431 130549 10643179 202220401