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1354181868 = 223313964517
BaseRepresentation
bin101000010110111…
…0010110011101100
310111101010120022000
41100231302303230
510233132304433
6342212452300
745362233044
oct12055626354
93441116260
101354181868
11635444976
1231961a090
13187728960
14cbbc6724
157dd44113
hex50b72cec

1354181868 has 48 divisors (see below), whose sum is σ = 3780910560. Its totient is φ = 416670912.

The previous prime is 1354181867. The next prime is 1354181911. The reversal of 1354181868 is 8681814531.

It is not an unprimeable number, because it can be changed into a prime (1354181861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480855 + ... + 483662.

It is an arithmetic number, because the mean of its divisors is an integer number (78768970).

Almost surely, 21354181868 is an apocalyptic number.

1354181868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1354181868 is an abundant number, since it is smaller than the sum of its proper divisors (2426728692).

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

1354181868 is a wasteful number, since it uses less digits than its factorization.

1354181868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964543 (or 964535 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 1354181868 is about 36799.2101545672. The cubic root of 1354181868 is about 1106.3494683327.

The spelling of 1354181868 in words is "one billion, three hundred fifty-four million, one hundred eighty-one thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 108 117 156 234 351 468 702 1404 964517 1929034 2893551 3858068 5787102 8680653 11574204 12538721 17361306 25077442 26041959 34722612 37616163 50154884 52083918 75232326 104167836 112848489 150464652 225696978 338545467 451393956 677090934 1354181868