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155122542 = 23224135759
BaseRepresentation
bin10010011111011…
…11101101101110
3101210220001010100
421033233231232
5304202410132
623220451530
73562343211
oct1117575556
9353801110
10155122542
117a620953
1243b49ba6
13261a36b3
141685d778
15d94237c
hex93efb6e

155122542 has 24 divisors (see below), whose sum is σ = 337502880. Its totient is φ = 51491520.

The previous prime is 155122529. The next prime is 155122547. The reversal of 155122542 is 245221551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155122547) 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 11 ways as a sum of consecutive naturals, for example, 13542 + ... + 22217.

It is an arithmetic number, because the mean of its divisors is an integer number (14062620).

Almost surely, 2155122542 is an apocalyptic number.

155122542 is an abundant number, since it is smaller than the sum of its proper divisors (182380338).

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

155122542 is a wasteful number, since it uses less digits than its factorization.

155122542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36008 (or 36005 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 155122542 is about 12454.8200308154. The cubic root of 155122542 is about 537.3100588647.

Subtracting 155122542 from its reverse (245221551), we obtain a palindrome (90099009).

The spelling of 155122542 in words is "one hundred fifty-five million, one hundred twenty-two thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 241 482 723 1446 2169 4338 35759 71518 107277 214554 321831 643662 8617919 17235838 25853757 51707514 77561271 155122542