Search a number
-
+
156831048 = 233211712789
BaseRepresentation
bin10010101100100…
…00110101001000
3101221002211202100
421112100311020
5310122043143
623321233400
73613020243
oct1126206510
9357084670
10156831048
1180588540
1244632860
132665124a
1416b8625a
15db7d6d3
hex9590d48

156831048 has 96 divisors (see below), whose sum is σ = 470059200. Its totient is φ = 46838400.

The previous prime is 156831041. The next prime is 156831067. The reversal of 156831048 is 840138651.

156831048 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (156831041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54838 + ... + 57626.

It is an arithmetic number, because the mean of its divisors is an integer number (4896450).

Almost surely, 2156831048 is an apocalyptic number.

156831048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156831048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235029600).

156831048 is an abundant number, since it is smaller than the sum of its proper divisors (313228152).

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

156831048 is a wasteful number, since it uses less digits than its factorization.

156831048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883 (or 2876 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 156831048 is about 12523.2203526090. The cubic root of 156831048 is about 539.2754892738.

Adding to 156831048 its reverse (840138651), we get a palindrome (996969699).

The spelling of 156831048 in words is "one hundred fifty-six million, eight hundred thirty-one thousand, forty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 71 72 88 99 132 142 198 213 264 284 396 426 568 639 781 792 852 1278 1562 1704 2343 2556 2789 3124 4686 5112 5578 6248 7029 8367 9372 11156 14058 16734 18744 22312 25101 28116 30679 33468 50202 56232 61358 66936 92037 100404 122716 184074 198019 200808 245432 276111 368148 396038 552222 594057 736296 792076 1104444 1188114 1584152 1782171 2178209 2208888 2376228 3564342 4356418 4752456 6534627 7128684 8712836 13069254 14257368 17425672 19603881 26138508 39207762 52277016 78415524 156831048