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918718022242 = 219101239374159
BaseRepresentation
bin11010101111001111101…
…11001000001001100010
310020211101001001010121101
431113213313020021202
5110023013303202432
61542015255345014
7123242455224646
oct15274767101142
93224331033541
10918718022242
11324698410a69
1212a07898216a
1368833698c07
143267531cc26
1518d709674e7
hexd5e7dc8262

918718022242 has 16 divisors (see below), whose sum is σ = 1464969859200. Its totient is φ = 430873484400.

The previous prime is 918718022231. The next prime is 918718022279. The reversal of 918718022242 is 242220817819.

It is a junction number, because it is equal to n+sod(n) for n = 918718022192 and 918718022201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119683242 + ... + 119690917.

It is an arithmetic number, because the mean of its divisors is an integer number (91560616200).

Almost surely, 2918718022242 is an apocalyptic number.

918718022242 is a deficient number, since it is larger than the sum of its proper divisors (546251836958).

918718022242 is a wasteful number, since it uses less digits than its factorization.

918718022242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239374281.

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 918718022242 in words is "nine hundred eighteen billion, seven hundred eighteen million, twenty-two thousand, two hundred forty-two".

Divisors: 1 2 19 38 101 202 1919 3838 239374159 478748318 4548109021 9096218042 24176790059 48353580118 459359011121 918718022242