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141800020 = 2257090001
BaseRepresentation
bin10000111001110…
…11001001010100
3100212211012001121
420130323021110
5242300100040
622023133324
73341165065
oct1034731124
9325735047
10141800020
11730514aa
123b5a4244
13234ba74b
1414b9256c
15c6aec4a
hex873b254

141800020 has 12 divisors (see below), whose sum is σ = 297780084. Its totient is φ = 56720000.

The previous prime is 141800003. The next prime is 141800027. The reversal of 141800020 is 20008141.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73307844 + 68492176 = 8562^2 + 8276^2 .

It is a junction number, because it is equal to n+sod(n) for n = 141799967 and 141800003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141800027) by changing a digit.

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, 3544981 + ... + 3545020.

It is an arithmetic number, because the mean of its divisors is an integer number (24815007).

Almost surely, 2141800020 is an apocalyptic number.

141800020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141800020 is an abundant number, since it is smaller than the sum of its proper divisors (155980064).

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

141800020 is a wasteful number, since it uses less digits than its factorization.

141800020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7090010 (or 7090008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 141800020 is about 11907.9813570563. The cubic root of 141800020 is about 521.4653196272.

Adding to 141800020 its reverse (20008141), we get a palindrome (161808161).

The spelling of 141800020 in words is "one hundred forty-one million, eight hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 7090001 14180002 28360004 35450005 70900010 141800020