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154142133 = 3178328817
BaseRepresentation
bin10010011000000…
…00010110110101
3101202001020020220
421030000112311
5303430022013
623143444553
73551120655
oct1114002665
9352036226
10154142133
117a0112a2
1243756759
1325c1c382
1416686365
15d7ebb23
hex93005b5

154142133 has 8 divisors (see below), whose sum is σ = 205645248. Its totient is φ = 102700224.

The previous prime is 154142099. The next prime is 154142141. The reversal of 154142133 is 331241451.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 154142133 - 26 = 154142069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154142173) 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 7 ways as a sum of consecutive naturals, for example, 9060 + ... + 19757.

It is an arithmetic number, because the mean of its divisors is an integer number (25705656).

Almost surely, 2154142133 is an apocalyptic number.

It is an amenable number.

154142133 is a deficient number, since it is larger than the sum of its proper divisors (51503115).

154142133 is a wasteful number, since it uses less digits than its factorization.

154142133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30603.

The product of its digits is 1440, while the sum is 24.

The square root of 154142133 is about 12415.3990270148. The cubic root of 154142133 is about 536.1756926178.

Adding to 154142133 its reverse (331241451), we get a palindrome (485383584).

The spelling of 154142133 in words is "one hundred fifty-four million, one hundred forty-two thousand, one hundred thirty-three".

Divisors: 1 3 1783 5349 28817 86451 51380711 154142133