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2918867442 = 231972469431
BaseRepresentation
bin1010110111111010…
…0110000111110010
321112102100211101120
42231332212013302
521434212224232
61201345243110
7132221651421
oct25576460762
97472324346
102918867442
111268696347
12695633496
133769487ca
141d99272b8
151213b992c
hexadfa61f2

2918867442 has 16 divisors (see below), whose sum is σ = 5867370432. Its totient is φ = 968016560.

The previous prime is 2918867401. The next prime is 2918867447. The reversal of 2918867442 is 2447688192.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2918867447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233534 + ... + 1235897.

It is an arithmetic number, because the mean of its divisors is an integer number (366710652).

Almost surely, 22918867442 is an apocalyptic number.

2918867442 is an abundant number, since it is smaller than the sum of its proper divisors (2948502990).

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

2918867442 is a wasteful number, since it uses less digits than its factorization.

2918867442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469633.

The product of its digits is 1548288, while the sum is 51.

The square root of 2918867442 is about 54026.5438650299. The cubic root of 2918867442 is about 1429.1290835273.

The spelling of 2918867442 in words is "two billion, nine hundred eighteen million, eight hundred sixty-seven thousand, four hundred forty-two".

Divisors: 1 2 3 6 197 394 591 1182 2469431 4938862 7408293 14816586 486477907 972955814 1459433721 2918867442