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155120163159 = 31318049220369
BaseRepresentation
bin1001000001110111100…
…0011101100101010111
3112211101120221202022010
42100131320131211113
510020141230210114
6155132231235303
714131010426433
oct2203570354527
9484346852263
10155120163159
115a871319555
1226091518b33
13118212912c0
1477177b19c3
15407d36ec59
hex241de1d957

155120163159 has 16 divisors (see below), whose sum is σ = 222749996000. Its totient is φ = 95452839936.

The previous prime is 155120163127. The next prime is 155120163193. The reversal of 155120163159 is 951361021551.

It is not a de Polignac number, because 155120163159 - 25 = 155120163127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155120163559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593727 + ... + 814095.

It is an arithmetic number, because the mean of its divisors is an integer number (13921874750).

Almost surely, 2155120163159 is an apocalyptic number.

155120163159 is a deficient number, since it is larger than the sum of its proper divisors (67629832841).

155120163159 is a wasteful number, since it uses less digits than its factorization.

155120163159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238434.

The product of its (nonzero) digits is 40500, while the sum is 39.

The spelling of 155120163159 in words is "one hundred fifty-five billion, one hundred twenty million, one hundred sixty-three thousand, one hundred fifty-nine".

Divisors: 1 3 13 39 18049 54147 220369 234637 661107 703911 2864797 8594391 3977440081 11932320243 51706721053 155120163159