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154331132 = 2238582783
BaseRepresentation
bin10010011001011…
…10011111111100
3101202101211111212
421030232133330
5304002044012
623151503552
73552535664
oct1114563774
9352354455
10154331132
117a13029a
1243827bb8
1325c873c7
14166d51a4
15d837b22
hex932e7fc

154331132 has 6 divisors (see below), whose sum is σ = 270079488. Its totient is φ = 77165564.

The previous prime is 154331123. The next prime is 154331137. The reversal of 154331132 is 231133451.

It is a junction number, because it is equal to n+sod(n) for n = 154331098 and 154331107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154331137) 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 as a sum of consecutive naturals, namely, 19291388 + ... + 19291395.

It is an arithmetic number, because the mean of its divisors is an integer number (45013248).

Almost surely, 2154331132 is an apocalyptic number.

It is an amenable number.

154331132 is a deficient number, since it is larger than the sum of its proper divisors (115748356).

154331132 is a wasteful number, since it uses less digits than its factorization.

154331132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38582787 (or 38582785 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 154331132 is about 12423.0081703265. The cubic root of 154331132 is about 536.3947442997.

Adding to 154331132 its reverse (231133451), we get a palindrome (385464583).

The spelling of 154331132 in words is "one hundred fifty-four million, three hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 38582783 77165566 154331132