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220131048 = 23353173059
BaseRepresentation
bin11010001111011…
…10111011101000
3120100012211000210
431013232323220
5422323143143
633502101120
75312040324
oct1507567350
9510184023
10220131048
11103292795
126187a7a0
13367b5277
1421342984
15144d4033
hexd1eeee8

220131048 has 32 divisors (see below), whose sum is σ = 560714400. Its totient is φ = 71992128.

The previous prime is 220131047. The next prime is 220131049. The reversal of 220131048 is 840131022.

It is an interprime number because it is at equal distance from previous prime (220131047) and next prime (220131049).

It is not an unprimeable number, because it can be changed into a prime (220131047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85258 + ... + 87801.

It is an arithmetic number, because the mean of its divisors is an integer number (17522325).

Almost surely, 2220131048 is an apocalyptic number.

It is an amenable number.

220131048 is an abundant number, since it is smaller than the sum of its proper divisors (340583352).

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

220131048 is a wasteful number, since it uses less digits than its factorization.

220131048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173121 (or 173117 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 220131048 is about 14836.8139437010. The cubic root of 220131048 is about 603.8009153380.

The spelling of 220131048 in words is "two hundred twenty million, one hundred thirty-one thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 53 106 159 212 318 424 636 1272 173059 346118 519177 692236 1038354 1384472 2076708 4153416 9172127 18344254 27516381 36688508 55032762 73377016 110065524 220131048