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231341441140 = 22556392051263
BaseRepresentation
bin1101011101110100000…
…1100100000001110100
3211010010120201212011201
43113131001210001310
512242241402104030
6254135441542244
722466566542655
oct3273501440164
9733116655151
10231341441140
118a125237877
1238a03944984
1318a7a59ba14
14b2a875752c
15603ec272ca
hex35dd064074

231341441140 has 24 divisors (see below), whose sum is σ = 485903416320. Its totient is φ = 92520121248.

The previous prime is 231341441131. The next prime is 231341441153. The reversal of 231341441140 is 41144143132.

It is a junction number, because it is equal to n+sod(n) for n = 231341441099 and 231341441108.

It is a congruent number.

It is an unprimeable number.

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, 912852 + ... + 1138411.

It is an arithmetic number, because the mean of its divisors is an integer number (20245975680).

Almost surely, 2231341441140 is an apocalyptic number.

231341441140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231341441140 is an abundant number, since it is smaller than the sum of its proper divisors (254561975180).

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

231341441140 is a wasteful number, since it uses less digits than its factorization.

231341441140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056911 (or 2056909 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 231341441140 its reverse (41144143132), we get a palindrome (272485584272).

The spelling of 231341441140 in words is "two hundred thirty-one billion, three hundred forty-one million, four hundred forty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 5639 11278 22556 28195 56390 112780 2051263 4102526 8205052 10256315 20512630 41025260 11567072057 23134144114 46268288228 57835360285 115670720570 231341441140