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155452512142134 = 23213962131299817
BaseRepresentation
bin100011010110001000011011…
…110001000000001100110110
3202101102010002212000111121200
4203112020123301000030312
5130333413221102022014
61310341522002153330
744513034111232044
oct4326103361001466
9671363085014550
10155452512142134
1145594049513799
12155278a3952846
1368981555cc25c
142a55d28187394
1512e8a23717a09
hex8d621bc40336

155452512142134 has 24 divisors (see below), whose sum is σ = 339236897006280. Its totient is φ = 51444716247648.

The previous prime is 155452512142093. The next prime is 155452512142139. The reversal of 155452512142134 is 431241215254551.

155452512142134 is a `hidden beast` number, since 1 + 5 + 5 + 452 + 5 + 1 + 21 + 42 + 134 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 155452512142134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155452512142139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31065647407 + ... + 31065652410.

It is an arithmetic number, because the mean of its divisors is an integer number (14134870708595).

Almost surely, 2155452512142134 is an apocalyptic number.

155452512142134 is an abundant number, since it is smaller than the sum of its proper divisors (183784384864146).

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

155452512142134 is a wasteful number, since it uses less digits than its factorization.

155452512142134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62131299964 (or 62131299961 counting only the distinct ones).

The product of its digits is 960000, while the sum is 45.

Adding to 155452512142134 its reverse (431241215254551), we get a palindrome (586693727396685).

The spelling of 155452512142134 in words is "one hundred fifty-five trillion, four hundred fifty-two billion, five hundred twelve million, one hundred forty-two thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 18 139 278 417 834 1251 2502 62131299817 124262599634 186393899451 372787798902 559181698353 1118363396706 8636250674563 17272501349126 25908752023689 51817504047378 77726256071067 155452512142134