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220503139 = 2310789599
BaseRepresentation
bin11010010010010…
…01110001100011
3120100220201102221
431021021301203
5422422100024
633514051511
75315150203
oct1511116143
9510821387
10220503139
111035172aa
1261a19b97
13368b573c
14213dc403
15145593e4
hexd249c63

220503139 has 8 divisors (see below), whose sum is σ = 232243200. Its totient is φ = 208942536.

The previous prime is 220503137. The next prime is 220503149. The reversal of 220503139 is 931305022.

It is a happy number.

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 220503139 - 21 = 220503137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220503133) 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, 42339 + ... + 47260.

It is an arithmetic number, because the mean of its divisors is an integer number (29030400).

Almost surely, 2220503139 is an apocalyptic number.

220503139 is a deficient number, since it is larger than the sum of its proper divisors (11740061).

220503139 is a wasteful number, since it uses less digits than its factorization.

220503139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89729.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 220503139 is about 14849.3481001692. The cubic root of 220503139 is about 604.1409285862.

The spelling of 220503139 in words is "two hundred twenty million, five hundred three thousand, one hundred thirty-nine".

Divisors: 1 23 107 2461 89599 2060777 9587093 220503139