Search a number
-
+
153899988 = 223111165909
BaseRepresentation
bin10010010110001…
…01001111010100
3101201120221002120
421023011033110
5303344244423
623134335540
73546062004
oct1113051724
9351527076
10153899988
1179966380
124365a5b0
1325b660a8
1416622004
15d79eee3
hex92c53d4

153899988 has 24 divisors (see below), whose sum is σ = 391745760. Its totient is φ = 46636320.

The previous prime is 153899959. The next prime is 153899989. The reversal of 153899988 is 889998351.

153899988 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153899989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582823 + ... + 583086.

It is an arithmetic number, because the mean of its divisors is an integer number (16322740).

Almost surely, 2153899988 is an apocalyptic number.

It is an amenable number.

153899988 is an abundant number, since it is smaller than the sum of its proper divisors (237845772).

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

153899988 is a wasteful number, since it uses less digits than its factorization.

153899988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165927 (or 1165925 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 60.

The square root of 153899988 is about 12405.6433932304. The cubic root of 153899988 is about 535.8947823840.

The spelling of 153899988 in words is "one hundred fifty-three million, eight hundred ninety-nine thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1165909 2331818 3497727 4663636 6995454 12824999 13990908 25649998 38474997 51299996 76949994 153899988