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2215155313 = 73123094421
BaseRepresentation
bin1000010000001000…
…1001011001110001
312201101012112211101
42010002021121301
514014034432223
61003450244401
7105615336520
oct20402113161
95641175741
102215155313
11a37440a78
12519a26701
13293c098b7
141702a44b7
15ce7124ad
hex84089671

2215155313 has 16 divisors (see below), whose sum is σ = 2614993920. Its totient is φ = 1836244800.

The previous prime is 2215155307. The next prime is 2215155347. The reversal of 2215155313 is 3135515122.

It is a cyclic number.

It is not a de Polignac number, because 2215155313 - 221 = 2213058161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2215155713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498843 + ... + 503263.

It is an arithmetic number, because the mean of its divisors is an integer number (163437120).

Almost surely, 22215155313 is an apocalyptic number.

It is an amenable number.

2215155313 is a deficient number, since it is larger than the sum of its proper divisors (399838607).

2215155313 is a wasteful number, since it uses less digits than its factorization.

2215155313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6768.

The product of its digits is 4500, while the sum is 28.

The square root of 2215155313 is about 47065.4365006849. The cubic root of 2215155313 is about 1303.5711107325.

The spelling of 2215155313 in words is "two billion, two hundred fifteen million, one hundred fifty-five thousand, three hundred thirteen".

Divisors: 1 7 31 217 2309 4421 16163 30947 71579 137051 501053 959357 10208089 71456623 316450759 2215155313