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153240045661 = 1710878292659
BaseRepresentation
bin1000111010110111010…
…0011000100001011101
3112122112120011212221201
42032231310120201131
510002313422430121
6154221505555501
714033300616343
oct2165564304135
9478476155851
10153240045661
1159a9701343a
1225847945b91
13115b18cc541
1475b9c01993
153ebd28ce91
hex23add1885d

153240045661 has 8 divisors (see below), whose sum is σ = 162403453440. Its totient is φ = 144093225408.

The previous prime is 153240045619. The next prime is 153240045733. The reversal of 153240045661 is 166540042351.

153240045661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 153240045661 - 29 = 153240045149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153240045661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153240045061) by changing a digit.

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, 4127851 + ... + 4164808.

It is an arithmetic number, because the mean of its divisors is an integer number (20300431680).

Almost surely, 2153240045661 is an apocalyptic number.

It is an amenable number.

153240045661 is a deficient number, since it is larger than the sum of its proper divisors (9163407779).

153240045661 is a wasteful number, since it uses less digits than its factorization.

153240045661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8293763.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 153240045661 in words is "one hundred fifty-three billion, two hundred forty million, forty-five thousand, six hundred sixty-one".

Divisors: 1 17 1087 18479 8292659 140975203 9014120333 153240045661