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43142312101 = 721419762017
BaseRepresentation
bin101000001011011110…
…110111000010100101
311010100122212112100011
4220023132313002211
51201323412441401
631452545250221
73055051413400
oct501336670245
9133318775304
1043142312101
111732978a699
128440333971
1340b70a3635
142133a5ad37
1511c77dc451
hexa0b7b70a5

43142312101 has 12 divisors (see below), whose sum is σ = 50190299148. Its totient is φ = 36975923712.

The previous prime is 43142312093. The next prime is 43142312113. The reversal of 43142312101 is 10121324134.

43142312101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42952148001 + 190164100 = 207249^2 + 13790^2 .

It is not a de Polignac number, because 43142312101 - 23 = 43142312093 is a prime.

It is a super-2 number, since 2×431423121012 (a number of 22 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 (43142315101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 664645 + ... + 726661.

It is an arithmetic number, because the mean of its divisors is an integer number (4182524929).

Almost surely, 243142312101 is an apocalyptic number.

It is an amenable number.

43142312101 is a deficient number, since it is larger than the sum of its proper divisors (7047987047).

43142312101 is a wasteful number, since it uses less digits than its factorization.

43142312101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76228 (or 76221 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 43142312101 its reverse (10121324134), we get a palindrome (53263636235).

The spelling of 43142312101 in words is "forty-three billion, one hundred forty-two million, three hundred twelve thousand, one hundred one".

Divisors: 1 7 49 14197 62017 99379 434119 695653 3038833 880455349 6163187443 43142312101