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155122641348 = 22312926886779
BaseRepresentation
bin1001000001111000000…
…1111010100111000100
3112211101202121122201220
42100132001322213010
510020142344010343
6155132400320340
714131040460453
oct2203601724704
9484352548656
10155122641348
115a872761444
12260923130b0
131182194b29c
147717c58b9a
15407d6ae183
hex241e07a9c4

155122641348 has 12 divisors (see below), whose sum is σ = 361952829840. Its totient is φ = 51707547112.

The previous prime is 155122641343. The next prime is 155122641361. The reversal of 155122641348 is 843146221551.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (155122641343) 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, 6463443378 + ... + 6463443401.

It is an arithmetic number, because the mean of its divisors is an integer number (30162735820).

Almost surely, 2155122641348 is an apocalyptic number.

It is an amenable number.

155122641348 is an abundant number, since it is smaller than the sum of its proper divisors (206830188492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155122641348 is a wasteful number, since it uses less digits than its factorization.

155122641348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12926886786 (or 12926886784 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

Adding to 155122641348 its reverse (843146221551), we get a palindrome (998268862899).

The spelling of 155122641348 in words is "one hundred fifty-five billion, one hundred twenty-two million, six hundred forty-one thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 12926886779 25853773558 38780660337 51707547116 77561320674 155122641348