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3213431455429 = 13376165723753
BaseRepresentation
bin101110110000101111011…
…100001011111011000101
3102101012102120012120222201
4232300233130023323011
5410122101423033204
610500121404154501
7451106553460216
oct56605734137305
912335376176881
103213431455429
111029899312168
1243a94b838a31
131a4043726930
14b1760b7540d
15588c6e439a4
hex2ec2f70bec5

3213431455429 has 8 divisors (see below), whose sum is σ = 3461538675672. Its totient is φ = 2965455690240.

The previous prime is 3213431455411. The next prime is 3213431455471. The reversal of 3213431455429 is 9245541343123.

It can be written as a sum of positive squares in 4 ways, for example, as 443953024804 + 2769478430625 = 666298^2 + 1664175^2 .

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 3213431455429 - 215 = 3213431422661 is a prime.

It is a super-2 number, since 2×32134314554292 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213431458429) 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, 32812984 + ... + 32910769.

It is an arithmetic number, because the mean of its divisors is an integer number (432692334459).

Almost surely, 23213431455429 is an apocalyptic number.

It is an amenable number.

3213431455429 is a deficient number, since it is larger than the sum of its proper divisors (248107220243).

3213431455429 is a wasteful number, since it uses less digits than its factorization.

3213431455429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65727527.

The product of its digits is 1555200, while the sum is 46.

The spelling of 3213431455429 in words is "three trillion, two hundred thirteen billion, four hundred thirty-one million, four hundred fifty-five thousand, four hundred twenty-nine".

Divisors: 1 13 3761 48893 65723753 854408789 247187035033 3213431455429