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81430114344 = 2333392921431
BaseRepresentation
bin100101111010110011…
…1001111000000101000
321210012000010102001220
41023311213033000220
52313232102124334
6101224121542040
75611625360115
oct1136547170050
9253160112056
1081430114344
11315971a4167
1213946944920
1378a94c8617
143d26a8990c
1521b8d11449
hex12f59cf028

81430114344 has 16 divisors (see below), whose sum is σ = 203575285920. Its totient is φ = 27143371440.

The previous prime is 81430114343. The next prime is 81430114397. The reversal of 81430114344 is 44341103418.

It is not an unprimeable number, because it can be changed into a prime (81430114343) 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, 1696460692 + ... + 1696460739.

It is an arithmetic number, because the mean of its divisors is an integer number (12723455370).

Almost surely, 281430114344 is an apocalyptic number.

It is an amenable number.

81430114344 is an abundant number, since it is smaller than the sum of its proper divisors (122145171576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81430114344 is a wasteful number, since it uses less digits than its factorization.

81430114344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392921440 (or 3392921436 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 81430114344 in words is "eighty-one billion, four hundred thirty million, one hundred fourteen thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 3392921431 6785842862 10178764293 13571685724 20357528586 27143371448 40715057172 81430114344