Search a number
-
+
154245340 = 2257712267
BaseRepresentation
bin10010011000110…
…01100011011100
3101202020110211101
421030121203130
5303441322330
623150002444
73552030604
oct1114314334
9352213741
10154245340
117a081897
12437a6424
1325c57342
14166b1c04
15d81c4ca
hex93198dc

154245340 has 12 divisors (see below), whose sum is σ = 323915256. Its totient is φ = 61698128.

The previous prime is 154245313. The next prime is 154245349. The reversal of 154245340 is 43542451.

It is a junction number, because it is equal to n+sod(n) for n = 154245299 and 154245308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154245349) 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 3 ways as a sum of consecutive naturals, for example, 3856114 + ... + 3856153.

It is an arithmetic number, because the mean of its divisors is an integer number (26992938).

Almost surely, 2154245340 is an apocalyptic number.

154245340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154245340 is an abundant number, since it is smaller than the sum of its proper divisors (169669916).

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

154245340 is a wasteful number, since it uses less digits than its factorization.

154245340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7712276 (or 7712274 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 154245340 is about 12419.5547424213. The cubic root of 154245340 is about 536.2953327140.

Adding to 154245340 its reverse (43542451), we get a palindrome (197787791).

The spelling of 154245340 in words is "one hundred fifty-four million, two hundred forty-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 7712267 15424534 30849068 38561335 77122670 154245340