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43131244132 = 222328111531447
BaseRepresentation
bin101000001010110100…
…101000111001100100
311010022220001012221101
4220022310220321210
51201313044303012
631451512125444
73054555345304
oct501264507144
9133286035841
1043131244132
1117323510109
128438696884
1340b49c9942
1421323b9604
1511c6852d57
hexa0ad28e64

43131244132 has 48 divisors (see below), whose sum is σ = 79164916992. Its totient is φ = 20522557440.

The previous prime is 43131244087. The next prime is 43131244151. The reversal of 43131244132 is 23144213134.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 43131244132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29806633 + ... + 29808079.

It is an arithmetic number, because the mean of its divisors is an integer number (1649269104).

Almost surely, 243131244132 is an apocalyptic number.

It is an amenable number.

43131244132 is a deficient number, since it is larger than the sum of its proper divisors (36033672860).

43131244132 is a wasteful number, since it uses less digits than its factorization.

43131244132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908 (or 2906 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 43131244132 its reverse (23144213134), we get a palindrome (66275457266).

The spelling of 43131244132 in words is "forty-three billion, one hundred thirty-one million, two hundred forty-four thousand, one hundred thirty-two".

Divisors: 1 2 4 23 46 92 281 562 1124 1153 1447 2306 2894 4612 5788 6463 12926 25852 26519 33281 53038 66562 106076 133124 323993 406607 647986 813214 1295972 1626428 1668391 3336782 6673564 7451839 9351961 14903678 18703922 29807356 37407844 38372993 76745986 153491972 468817871 937635742 1875271484 10782811033 21565622066 43131244132