Search a number
-
+
154042253 = 1719476911
BaseRepresentation
bin10010010111001…
…11111110001101
3101201212011020122
421023213332031
5303413323003
623141354325
73550223531
oct1113477615
9351764218
10154042253
1179a53252
12437089a5
1325bb5a81
141665bbc1
15d7cc238
hex92e7f8d

154042253 has 8 divisors (see below), whose sum is σ = 171688320. Its totient is φ = 137350080.

The previous prime is 154042243. The next prime is 154042261. The reversal of 154042253 is 352240451.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 154042253 - 210 = 154041229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154042223) 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 in 7 ways as a sum of consecutive naturals, for example, 238133 + ... + 238778.

It is an arithmetic number, because the mean of its divisors is an integer number (21461040).

Almost surely, 2154042253 is an apocalyptic number.

It is an amenable number.

154042253 is a deficient number, since it is larger than the sum of its proper divisors (17646067).

154042253 is a wasteful number, since it uses less digits than its factorization.

154042253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476947.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 154042253 is about 12411.3759511184. The cubic root of 154042253 is about 536.0598584019.

The spelling of 154042253 in words is "one hundred fifty-four million, forty-two thousand, two hundred fifty-three".

Divisors: 1 17 19 323 476911 8107487 9061309 154042253