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31200442003 = 131808129473
BaseRepresentation
bin11101000011101100…
…001111011010010011
32222112102010200020001
4131003230033122103
51002344303121003
622155553430431
72153114244523
oct350354173223
988472120201
1031200442003
1112260921965
126068b6b417
132c32cb2803
14171da51683
15c2920061d
hex743b0f693

31200442003 has 8 divisors (see below), whose sum is σ = 31443570576. Its totient is φ = 30957388800.

The previous prime is 31200441997. The next prime is 31200442027. The reversal of 31200442003 is 30024400213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31200442003 - 25 = 31200441971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31200442303) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1043875 + ... + 1073347.

It is an arithmetic number, because the mean of its divisors is an integer number (3930446322).

Almost surely, 231200442003 is an apocalyptic number.

31200442003 is a deficient number, since it is larger than the sum of its proper divisors (243128573).

31200442003 is a wasteful number, since it uses less digits than its factorization.

31200442003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37685.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 31200442003 its reverse (30024400213), we get a palindrome (61224842216).

The spelling of 31200442003 in words is "thirty-one billion, two hundred million, four hundred forty-two thousand, three".

Divisors: 1 131 8081 29473 1058611 3860963 238171313 31200442003