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182868740 = 2259143437
BaseRepresentation
bin10101110011001…
…01101100000100
3110202002200202022
422321211230010
5333303244430
630051302312
74350234005
oct1271455404
9422080668
10182868740
1194251a9a
12512aa998
132bb69872
141a4031ac
15110c34e5
hexae65b04

182868740 has 12 divisors (see below), whose sum is σ = 384024396. Its totient is φ = 73147488.

The previous prime is 182868731. The next prime is 182868761. The reversal of 182868740 is 47868281.

It can be written as a sum of positive squares in 2 ways, for example, as 36168196 + 146700544 = 6014^2 + 12112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 182868691 and 182868700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4571699 + ... + 4571738.

It is an arithmetic number, because the mean of its divisors is an integer number (32002033).

Almost surely, 2182868740 is an apocalyptic number.

182868740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

182868740 is an abundant number, since it is smaller than the sum of its proper divisors (201155656).

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

182868740 is a wasteful number, since it uses less digits than its factorization.

182868740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9143446 (or 9143444 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 182868740 is about 13522.8968789975. The cubic root of 182868740 is about 567.6053638130.

The spelling of 182868740 in words is "one hundred eighty-two million, eight hundred sixty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 9143437 18286874 36573748 45717185 91434370 182868740