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1868072012 = 224111390683
BaseRepresentation
bin110111101011000…
…1000010001001100
311211012002220001022
41233112020101030
512311211301022
6505211133312
764202231042
oct15726102114
94735086038
101868072012
11879529174
12441744238
1323a035171
1413a156392
15ae002c42
hex6f58844c

1868072012 has 12 divisors (see below), whose sum is σ = 3348861096. Its totient is φ = 911254560.

The previous prime is 1868072009. The next prime is 1868072057. The reversal of 1868072012 is 2102708681.

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, 5695178 + ... + 5695505.

It is an arithmetic number, because the mean of its divisors is an integer number (279071758).

Almost surely, 21868072012 is an apocalyptic number.

It is an amenable number.

1868072012 is a deficient number, since it is larger than the sum of its proper divisors (1480789084).

1868072012 is a wasteful number, since it uses less digits than its factorization.

1868072012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11390728 (or 11390726 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 1868072012 is about 43221.1986414074. The cubic root of 1868072012 is about 1231.5854171952.

The spelling of 1868072012 in words is "one billion, eight hundred sixty-eight million, seventy-two thousand, twelve".

Divisors: 1 2 4 41 82 164 11390683 22781366 45562732 467018003 934036006 1868072012