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34403143231 = 191810691749
BaseRepresentation
bin100000000010100101…
…100100111000111111
310021210121120202101001
4200002211210320333
51030424201040411
623445442431131
72325353615062
oct400245447077
9107717522331
1034403143231
111365474a786
1268016624a7
1333236889b2
1419451408d9
15d65483dc1
hex802964e3f

34403143231 has 4 divisors (see below), whose sum is σ = 36213835000. Its totient is φ = 32592451464.

The previous prime is 34403143211. The next prime is 34403143259. The reversal of 34403143231 is 13234130443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13234130443 = 28974568219.

It is a cyclic number.

It is not a de Polignac number, because 34403143231 - 211 = 34403141183 is a prime.

It is a super-2 number, since 2×344031432312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34403143231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34403143211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905345856 + ... + 905345893.

It is an arithmetic number, because the mean of its divisors is an integer number (9053458750).

Almost surely, 234403143231 is an apocalyptic number.

34403143231 is a deficient number, since it is larger than the sum of its proper divisors (1810691769).

34403143231 is a wasteful number, since it uses less digits than its factorization.

34403143231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810691768.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 34403143231 its reverse (13234130443), we get a palindrome (47637273674).

The spelling of 34403143231 in words is "thirty-four billion, four hundred three million, one hundred forty-three thousand, two hundred thirty-one".

Divisors: 1 19 1810691749 34403143231