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43139094160 = 2451928380983
BaseRepresentation
bin101000001011010010…
…100101011010010000
311010100102211001011011
4220023102211122100
51201322102003120
631452352300304
73055012151551
oct501322453220
9133312731134
1043139094160
1117327991a38
12843b241694
1340b6517a26
142133460328
1511c73a3c5a
hexa0b4a5690

43139094160 has 40 divisors (see below), whose sum is σ = 105577260480. Its totient is φ = 16347445632.

The previous prime is 43139094139. The next prime is 43139094161. The reversal of 43139094160 is 6149093134.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×431390941602 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (43139094161) 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, 14188972 + ... + 14192011.

It is an arithmetic number, because the mean of its divisors is an integer number (2639431512).

Almost surely, 243139094160 is an apocalyptic number.

43139094160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43139094160 is an abundant number, since it is smaller than the sum of its proper divisors (62438166320).

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

43139094160 is a wasteful number, since it uses less digits than its factorization.

43139094160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28381015 (or 28381009 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 43139094160 in words is "forty-three billion, one hundred thirty-nine million, ninety-four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 19 20 38 40 76 80 95 152 190 304 380 760 1520 28380983 56761966 113523932 141904915 227047864 283809830 454095728 539238677 567619660 1078477354 1135239320 2156954708 2270478640 2696193385 4313909416 5392386770 8627818832 10784773540 21569547080 43139094160