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918158416442 = 2739371671087
BaseRepresentation
bin11010101110001101000…
…00011001101000111010
310020202221001001012202122
431113012200121220322
5110020342023311232
61541443545201242
7123222551525111
oct15270640315072
93222831035678
10918158416442
11324430542933
12129b41490222
1368774774417
1432620c8cc78
1518d3b778312
hexd5c6819a3a

918158416442 has 16 divisors (see below), whose sum is σ = 1396254955392. Its totient is φ = 452741459040.

The previous prime is 918158416339. The next prime is 918158416447. The reversal of 918158416442 is 244614851819.

It is not an unprimeable number, because it can be changed into a prime (918158416447) 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, 1032623 + ... + 1703709.

It is an arithmetic number, because the mean of its divisors is an integer number (87265934712).

Almost surely, 2918158416442 is an apocalyptic number.

918158416442 is a deficient number, since it is larger than the sum of its proper divisors (478096538950).

918158416442 is a wasteful number, since it uses less digits than its factorization.

918158416442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680533.

The product of its digits is 2211840, while the sum is 53.

The spelling of 918158416442 in words is "nine hundred eighteen billion, one hundred fifty-eight million, four hundred sixteen thousand, four hundred forty-two".

Divisors: 1 2 73 146 9371 18742 671087 684083 1342174 1368166 48989351 97978702 6288756277 12577512554 459079208221 918158416442