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220552201 = 148512
BaseRepresentation
bin11010010010101…
…01110000001001
3120101000012202001
431021111300021
5422430132301
633515111001
75315443222
oct1511256011
9511005661
10220552201
11103550151
1261a42461
1336901b7c
1421412249
1514568c01
hexd255c09

220552201 has 3 divisors (see below), whose sum is σ = 220567053. Its totient is φ = 220537350.

The previous prime is 220552139. The next prime is 220552219. The reversal of 220552201 is 102255022.

The square root of 220552201 is 14851.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 102255022 = 251127511.

It is not a de Polignac number, because 220552201 - 29 = 220551689 is a prime.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220552901) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7426 + ... + 22276.

It is an arithmetic number, because the mean of its divisors is an integer number (73522351).

Almost surely, 2220552201 is an apocalyptic number.

220552201 is the 14851-st square number.

220552201 is the 7426-th centered octagonal number.

It is an amenable number.

220552201 is a deficient number, since it is larger than the sum of its proper divisors (14852).

220552201 is an frugal number, since it uses more digits than its factorization.

220552201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29702 (or 14851 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The cubic root of 220552201 is about 604.1857324294.

Multiplying 220552201 by its product of nonzero digits (400), we get a square (88220880400 = 2970202).

The spelling of 220552201 in words is "two hundred twenty million, five hundred fifty-two thousand, two hundred one".

Divisors: 1 14851 220552201