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109442406061 = 2113445711621
BaseRepresentation
bin110010111101101000…
…1101001011010101101
3101110111020012021021201
41211323101221122231
53243114223443221
6122135510325501
710623041050102
oct1457321513255
9343436167251
10109442406061
114246142657a
1219264059891
13a421b2b071
145423118aa9
152ca81a4891
hex197b4696ad

109442406061 has 8 divisors (see below), whose sum is σ = 109528191864. Its totient is φ = 109356656640.

The previous prime is 109442406043. The next prime is 109442406077. The reversal of 109442406061 is 160604244901.

It can be written as a sum of positive squares in 4 ways, for example, as 1983009961 + 107459396100 = 44531^2 + 327810^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109442406061 - 223 = 109434017453 is a prime.

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 109442406061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109442403061) 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, 9411831 + ... + 9423451.

It is an arithmetic number, because the mean of its divisors is an integer number (13691023983).

Almost surely, 2109442406061 is an apocalyptic number.

It is an amenable number.

109442406061 is a deficient number, since it is larger than the sum of its proper divisors (85785803).

109442406061 is a wasteful number, since it uses less digits than its factorization.

109442406061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 109442406061 in words is "one hundred nine billion, four hundred forty-two million, four hundred six thousand, sixty-one".

Divisors: 1 2113 4457 11621 9417641 24555173 51794797 109442406061