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31034420443 = 134177757143
BaseRepresentation
bin11100111001110010…
…111010110011011011
32222002211201220110101
4130321302322303123
51002024302423233
622131303200231
72146030135615
oct347162726333
988084656411
1031034420443
1112186137464
126021446077
132c077942c0
141705995db5
15c19858c7d
hex739cbacdb

31034420443 has 8 divisors (see below), whose sum is σ = 33423068448. Its totient is φ = 28645970304.

The previous prime is 31034420419. The next prime is 31034420471. The reversal of 31034420443 is 34402443013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31034420443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31034420843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514530 + ... + 571672.

It is an arithmetic number, because the mean of its divisors is an integer number (4177883556).

Almost surely, 231034420443 is an apocalyptic number.

31034420443 is a deficient number, since it is larger than the sum of its proper divisors (2388648005).

31034420443 is a wasteful number, since it uses less digits than its factorization.

31034420443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98933.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 31034420443 its reverse (34402443013), we get a palindrome (65436863456).

The spelling of 31034420443 in words is "thirty-one billion, thirty-four million, four hundred twenty thousand, four hundred forty-three".

Divisors: 1 13 41777 57143 543101 742859 2387263111 31034420443