Search a number
-
+
155123334 = 232171926681
BaseRepresentation
bin10010011111011…
…11111010000110
3101210220002012200
421033233322012
5304202421314
623220455330
73562345422
oct1117577206
9353802180
10155123334
117a621503
1243b4a546
13261a3b72
141685db82
15d942709
hex93efe86

155123334 has 48 divisors (see below), whose sum is σ = 374615280. Its totient is φ = 46103040.

The previous prime is 155123333. The next prime is 155123341. The reversal of 155123334 is 433321551.

It is a junction number, because it is equal to n+sod(n) for n = 155123298 and 155123307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155123333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7527 + ... + 19154.

It is an arithmetic number, because the mean of its divisors is an integer number (7804485).

Almost surely, 2155123334 is an apocalyptic number.

155123334 is an abundant number, since it is smaller than the sum of its proper divisors (219491946).

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

155123334 is a wasteful number, since it uses less digits than its factorization.

155123334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26725 (or 26722 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 155123334 is about 12454.8518256943. The cubic root of 155123334 is about 537.3109733006.

Adding to 155123334 its reverse (433321551), we get a palindrome (588444885).

The spelling of 155123334 in words is "one hundred fifty-five million, one hundred twenty-three thousand, three hundred thirty-four".

Divisors: 1 2 3 6 9 17 18 19 34 38 51 57 102 114 153 171 306 323 342 646 969 1938 2907 5814 26681 53362 80043 160086 240129 453577 480258 506939 907154 1013878 1360731 1520817 2721462 3041634 4082193 4562451 8164386 8617963 9124902 17235926 25853889 51707778 77561667 155123334