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2118668074 = 21955754423
BaseRepresentation
bin111111001001000…
…0100111100101010
312110122122111012221
41332102010330222
513314334334244
6550122224254
7103334244565
oct17622047452
95418574187
102118668074
11997a29756
124b165508a
13279c25c63
141615494dc
15c6003784
hex7e484f2a

2118668074 has 8 divisors (see below), whose sum is σ = 3345265440. Its totient is φ = 1003579596.

The previous prime is 2118668059. The next prime is 2118668081. The reversal of 2118668074 is 4708668112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2118668074.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27877174 + ... + 27877249.

It is an arithmetic number, because the mean of its divisors is an integer number (418158180).

Almost surely, 22118668074 is an apocalyptic number.

2118668074 is a deficient number, since it is larger than the sum of its proper divisors (1226597366).

2118668074 is a wasteful number, since it uses less digits than its factorization.

2118668074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55754444.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 2118668074 is about 46028.9916682953. The cubic root of 2118668074 is about 1284.3625708006.

The spelling of 2118668074 in words is "two billion, one hundred eighteen million, six hundred sixty-eight thousand, seventy-four".

Divisors: 1 2 19 38 55754423 111508846 1059334037 2118668074