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141542820 = 22325786349
BaseRepresentation
bin10000110111111…
…00010110100100
3100212100010020200
420123330112210
5242213332240
622013430500
73336044166
oct1033742644
9325303220
10141542820
1172996241
123b49b430
132342a663
1414b26936
15c65d930
hex86fc5a4

141542820 has 36 divisors (see below), whose sum is σ = 429347100. Its totient is φ = 37744704.

The previous prime is 141542813. The next prime is 141542857. The reversal of 141542820 is 28245141.

141542820 is a `hidden beast` number, since 1 + 41 + 542 + 82 + 0 = 666.

141542820 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 2 ways, for example, as 24383844 + 117158976 = 4938^2 + 10824^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392995 + ... + 393354.

Almost surely, 2141542820 is an apocalyptic number.

141542820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141542820 is an abundant number, since it is smaller than the sum of its proper divisors (287804280).

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

141542820 is a wasteful number, since it uses less digits than its factorization.

141542820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786364 (or 786359 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 141542820 is about 11897.1769760729. The cubic root of 141542820 is about 521.1498470519.

Adding to 141542820 its reverse (28245141), we get a palindrome (169787961).

The spelling of 141542820 in words is "one hundred forty-one million, five hundred forty-two thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 786349 1572698 2359047 3145396 3931745 4718094 7077141 7863490 9436188 11795235 14154282 15726980 23590470 28308564 35385705 47180940 70771410 141542820