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34040144420 = 22515111271571
BaseRepresentation
bin11111101100111100…
…110110001000100100
310020212022112111121122
4133230330312020210
51024203234110140
623345434233112
72313355311362
oct375474661044
9106768474548
1034040144420
1113488857367
12671bb85798
133296400cb9
14190cc4c632
15d4367dab5
hex7ecf36224

34040144420 has 24 divisors (see below), whose sum is σ = 71957715648. Its totient is φ = 13525884000.

The previous prime is 34040144401. The next prime is 34040144443. The reversal of 34040144420 is 2444104043.

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 34040144420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5632766 + ... + 5638805.

It is an arithmetic number, because the mean of its divisors is an integer number (2998238152).

Almost surely, 234040144420 is an apocalyptic number.

It is an amenable number.

34040144420 is an abundant number, since it is smaller than the sum of its proper divisors (37917571228).

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

34040144420 is a wasteful number, since it uses less digits than its factorization.

34040144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11271731 (or 11271729 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 34040144420 its reverse (2444104043), we get a palindrome (36484248463).

The spelling of 34040144420 in words is "thirty-four billion, forty million, one hundred forty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 151 302 604 755 1510 3020 11271571 22543142 45086284 56357855 112715710 225431420 1702007221 3404014442 6808028884 8510036105 17020072210 34040144420