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141530420 = 2257076521
BaseRepresentation
bin10000110111110…
…01010100110100
3100212022111020102
420123321110310
5242212433140
622013253232
73335663063
oct1033712464
9325274212
10141530420
1172987999
123b494218
1323424b15
1414b221da
15c659e15
hex86f9534

141530420 has 12 divisors (see below), whose sum is σ = 297213924. Its totient is φ = 56612160.

The previous prime is 141530387. The next prime is 141530437. The reversal of 141530420 is 24035141.

141530420 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16224784 + 125305636 = 4028^2 + 11194^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 7076521 = 141530420 / (1 + 4 + 1 + 5 + 3 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 141530392 and 141530401.

It is a congruent number.

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, 3538241 + ... + 3538280.

It is an arithmetic number, because the mean of its divisors is an integer number (24767827).

Almost surely, 2141530420 is an apocalyptic number.

141530420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141530420 is an abundant number, since it is smaller than the sum of its proper divisors (155683504).

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

141530420 is a wasteful number, since it uses less digits than its factorization.

141530420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7076530 (or 7076528 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 141530420 is about 11896.6558326279. The cubic root of 141530420 is about 521.1346279900.

Adding to 141530420 its reverse (24035141), we get a palindrome (165565561).

The spelling of 141530420 in words is "one hundred forty-one million, five hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 7076521 14153042 28306084 35382605 70765210 141530420