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29108490641 = 65944170699
BaseRepresentation
bin11011000111000000…
…000101000110010001
32210010121202112102222
4123013000011012101
5434103233200031
621212223550425
72050223042126
oct330700050621
983117675388
1029108490641
1111387a9093a
12578445b415
13298b782279
1415a1c9c74d
15b55727e7b
hex6c7005191

29108490641 has 4 divisors (see below), whose sum is σ = 29152662000. Its totient is φ = 29064319284.

The previous prime is 29108490617. The next prime is 29108490647. The reversal of 29108490641 is 14609480192.

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.

It is a cyclic number.

It is not a de Polignac number, because 29108490641 - 218 = 29108228497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29108490592 and 29108490601.

It is not an unprimeable number, because it can be changed into a prime (29108490647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22084691 + ... + 22086008.

It is an arithmetic number, because the mean of its divisors is an integer number (7288165500).

Almost surely, 229108490641 is an apocalyptic number.

It is an amenable number.

29108490641 is a deficient number, since it is larger than the sum of its proper divisors (44171359).

29108490641 is an equidigital number, since it uses as much as digits as its factorization.

29108490641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44171358.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 29108490641 in words is "twenty-nine billion, one hundred eight million, four hundred ninety thousand, six hundred forty-one".

Divisors: 1 659 44170699 29108490641