Search a number
-
+
155819048 = 23711443571
BaseRepresentation
bin10010100100110…
…01110000101000
3101212012102112212
421102121300220
5304342202143
623243424252
73601303640
oct1122316050
9355172485
10155819048
117aa57180
1244225088
1326388728
14169a1520
15da2d918
hex9499c28

155819048 has 64 divisors (see below), whose sum is σ = 365713920. Its totient is φ = 60465600.

The previous prime is 155819039. The next prime is 155819087. The reversal of 155819048 is 840918551.

It is a junction number, because it is equal to n+sod(n) for n = 155818996 and 155819014.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 272603 + ... + 273173.

It is an arithmetic number, because the mean of its divisors is an integer number (5714280).

Almost surely, 2155819048 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 155819048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182856960).

155819048 is an abundant number, since it is smaller than the sum of its proper divisors (209894872).

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

155819048 is a wasteful number, since it uses less digits than its factorization.

155819048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 155819048 is about 12482.7500175242. The cubic root of 155819048 is about 538.1130389933.

The spelling of 155819048 in words is "one hundred fifty-five million, eight hundred nineteen thousand, forty-eight".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 443 571 616 886 1142 1772 2284 3101 3544 3997 4568 4873 6202 6281 7994 9746 12404 12562 15988 19492 24808 25124 31976 34111 38984 43967 50248 68222 87934 136444 175868 252953 272888 351736 505906 1011812 1770671 2023624 2782483 3541342 5564966 7082684 11129932 14165368 19477381 22259864 38954762 77909524 155819048