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34440155641 = 191180314951
BaseRepresentation
bin100000000100110010…
…110001000111111001
310021220012020011212001
4200010302301013321
51031013134440031
623453244021001
72326313331013
oct400462610771
9107805204761
1034440155641
111367362a751
126811b31761
13332b247728
14194a0171b3
15d68845861
hex804cb11f9

34440155641 has 4 divisors (see below), whose sum is σ = 34620470784. Its totient is φ = 34259840500.

The previous prime is 34440155567. The next prime is 34440155663. The reversal of 34440155641 is 14655104443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14655104443 = 72093586349.

It is a cyclic number.

It is not a de Polignac number, because 34440155641 - 213 = 34440147449 is a prime.

It is a super-2 number, since 2×344401556412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34440155641.

It is not an unprimeable number, because it can be changed into a prime (34440155681) 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, 90157285 + ... + 90157666.

It is an arithmetic number, because the mean of its divisors is an integer number (8655117696).

Almost surely, 234440155641 is an apocalyptic number.

It is an amenable number.

34440155641 is a deficient number, since it is larger than the sum of its proper divisors (180315143).

34440155641 is a wasteful number, since it uses less digits than its factorization.

34440155641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180315142.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 34440155641 in words is "thirty-four billion, four hundred forty million, one hundred fifty-five thousand, six hundred forty-one".

Divisors: 1 191 180314951 34440155641