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31203002023 = 293729080151
BaseRepresentation
bin11101000011110110…
…000000011010100111
32222112120221201220121
4131003312000122213
51002400432031043
622200124342411
72153145066244
oct350366003247
988476851817
1031203002023
1112262310286
1260699a4a07
132c3369ab0b
14172011a5cb
15c29558ded
hex743d806a7

31203002023 has 8 divisors (see below), whose sum is σ = 33151373280. Its totient is φ = 29312791200.

The previous prime is 31203001979. The next prime is 31203002027. The reversal of 31203002023 is 32020030213.

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

It is not a de Polignac number, because 31203002023 - 221 = 31200904871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31203001988 and 31203002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31203002027) by changing a digit.

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, 14539003 + ... + 14541148.

It is an arithmetic number, because the mean of its divisors is an integer number (4143921660).

Almost surely, 231203002023 is an apocalyptic number.

31203002023 is a deficient number, since it is larger than the sum of its proper divisors (1948371257).

31203002023 is a wasteful number, since it uses less digits than its factorization.

31203002023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29080217.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 31203002023 its reverse (32020030213), we get a palindrome (63223032236).

The spelling of 31203002023 in words is "thirty-one billion, two hundred three million, two thousand, twenty-three".

Divisors: 1 29 37 1073 29080151 843324379 1075965587 31203002023