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154135201 = 11191275807
BaseRepresentation
bin10010010111111…
…10101010100001
3101202000212202011
421023332222201
5303424311301
623143352521
73551061523
oct1113765241
9352025664
10154135201
117a007070
1243752741
1325c1917c
1416683a13
15d7e9a51
hex92feaa1

154135201 has 16 divisors (see below), whose sum is σ = 178421760. Its totient is φ = 131680080.

The previous prime is 154135187. The next prime is 154135237. The reversal of 154135201 is 102531451.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 154135201 - 219 = 153610913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154135271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23640 + ... + 29446.

It is an arithmetic number, because the mean of its divisors is an integer number (11151360).

Almost surely, 2154135201 is an apocalyptic number.

154135201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

154135201 is a deficient number, since it is larger than the sum of its proper divisors (24286559).

154135201 is a wasteful number, since it uses less digits than its factorization.

154135201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 154135201 is about 12415.1198544356. The cubic root of 154135201 is about 536.1676549590.

Adding to 154135201 its reverse (102531451), we get a palindrome (256666652).

The spelling of 154135201 in words is "one hundred fifty-four million, one hundred thirty-five thousand, two hundred one".

Divisors: 1 11 19 127 209 1397 2413 5807 26543 63877 110333 737489 1213663 8112379 14012291 154135201