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16203755140 = 2254119760677
BaseRepresentation
bin11110001011101000…
…11010111010000100
31112211021020001022021
433011310122322010
5231141130131030
611235514412524
71112354434426
oct170564327204
945737201267
1016203755140
116965663081
123182731144
1316b30567c1
14ada050816
1564c84297a
hex3c5d1ae84

16203755140 has 24 divisors (see below), whose sum is σ = 34857835992. Its totient is φ = 6323416320.

The previous prime is 16203755131. The next prime is 16203755143. The reversal of 16203755140 is 4155730261.

16203755140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1334879296 + 14868875844 = 36536^2 + 121938^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16203755096 and 16203755105.

It is not an unprimeable number, because it can be changed into a prime (16203755143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9879519 + ... + 9881158.

It is an arithmetic number, because the mean of its divisors is an integer number (1452409833).

Almost surely, 216203755140 is an apocalyptic number.

16203755140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16203755140 is an abundant number, since it is smaller than the sum of its proper divisors (18654080852).

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

16203755140 is a wasteful number, since it uses less digits than its factorization.

16203755140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19760727 (or 19760725 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 16203755140 in words is "sixteen billion, two hundred three million, seven hundred fifty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 19760677 39521354 79042708 98803385 197606770 395213540 810187757 1620375514 3240751028 4050938785 8101877570 16203755140