Search a number
-
+
155426088 = 233232711039
BaseRepresentation
bin10010100001110…
…01110100101000
3101211110110111210
421100321310220
5304242113323
623231153120
73565046166
oct1120716450
9354413453
10155426088
117a808a14
12440757a0
132627b8cc
14168dc236
15d9a2293
hex9439d28

155426088 has 64 divisors (see below), whose sum is σ = 407347200. Its totient is φ = 49325760.

The previous prime is 155426083. The next prime is 155426113. The reversal of 155426088 is 880624551.

It is a Cunningham number, because it is equal to 124672-1.

It is not an unprimeable number, because it can be changed into a prime (155426081) 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, 149073 + ... + 150111.

It is an arithmetic number, because the mean of its divisors is an integer number (6364800).

Almost surely, 2155426088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155426088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203673600).

155426088 is an abundant number, since it is smaller than the sum of its proper divisors (251921112).

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

155426088 is a wasteful number, since it uses less digits than its factorization.

155426088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 155426088 is about 12466.9999598941. Note that the first 4 decimals coincide. The cubic root of 155426088 is about 537.6603025026.

The spelling of 155426088 in words is "one hundred fifty-five million, four hundred twenty-six thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 271 276 542 552 813 1039 1084 1626 2078 2168 3117 3252 4156 6233 6234 6504 8312 12466 12468 18699 23897 24932 24936 37398 47794 49864 71691 74796 95588 143382 149592 191176 281569 286764 563138 573528 844707 1126276 1689414 2252552 3378828 6476087 6757656 12952174 19428261 25904348 38856522 51808696 77713044 155426088