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2131435000 = 2354426287
BaseRepresentation
bin111111100001011…
…0001110111111000
312111112200010011001
41333002301313320
513331121410000
6551300014344
7103550620132
oct17702616770
95445603131
102131435000
119a4159732
124b59913b4
1327c776056
14163110052
15c71c646a
hex7f0b1df8

2131435000 has 40 divisors (see below), whose sum is σ = 4993963920. Its totient is φ = 852572000.

The previous prime is 2131434997. The next prime is 2131435013. The reversal of 2131435000 is 5341312.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 208144 + ... + 218143.

It is an arithmetic number, because the mean of its divisors is an integer number (124849098).

Almost surely, 22131435000 is an apocalyptic number.

2131435000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131435000 is an abundant number, since it is smaller than the sum of its proper divisors (2862528920).

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

2131435000 is an equidigital number, since it uses as much as digits as its factorization.

2131435000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426313 (or 426294 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2131435000 is about 46167.4669004051. The cubic root of 2131435000 is about 1286.9372285175.

Adding to 2131435000 its reverse (5341312), we get a palindrome (2136776312).

The spelling of 2131435000 in words is "two billion, one hundred thirty-one million, four hundred thirty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 625 1000 1250 2500 5000 426287 852574 1705148 2131435 3410296 4262870 8525740 10657175 17051480 21314350 42628700 53285875 85257400 106571750 213143500 266429375 426287000 532858750 1065717500 2131435000