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220808207 = 1033536073
BaseRepresentation
bin11010010100101…
…00010000001111
3120101111012220202
431022110100033
5423011330312
633524404115
75320560464
oct1512242017
9511435822
10220808207
11103705524
1261b4663b
1336991559
142147b66b
15145b99c2
hexd29440f

220808207 has 8 divisors (see below), whose sum is σ = 223620384. Its totient is φ = 218009088.

The previous prime is 220808197. The next prime is 220808213. The reversal of 220808207 is 702808022.

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 220808207 - 210 = 220807183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220808207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220802207) 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, 33323 + ... + 39395.

It is an arithmetic number, because the mean of its divisors is an integer number (27952548).

Almost surely, 2220808207 is an apocalyptic number.

220808207 is a deficient number, since it is larger than the sum of its proper divisors (2812177).

220808207 is a wasteful number, since it uses less digits than its factorization.

220808207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6529.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 220808207 is about 14859.6166505062. The cubic root of 220808207 is about 604.4194115978.

The spelling of 220808207 in words is "two hundred twenty million, eight hundred eight thousand, two hundred seven".

Divisors: 1 103 353 6073 36359 625519 2143769 220808207