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2154117001 = 19532139143
BaseRepresentation
bin1000000001100101…
…0011011110001001
312120010100111000011
42000121103132021
513402423221001
6553430111521
7104244456331
oct20031233611
95503314004
102154117001
11a05a40a93
125014ab5a1
1328438815a
141661360c1
15c91a6d51
hex80653789

2154117001 has 8 divisors (see below), whose sum is σ = 2310275520. Its totient is φ = 2002236912.

The previous prime is 2154116983. The next prime is 2154117029. The reversal of 2154117001 is 1007114512.

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 2154117001 - 211 = 2154114953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154117041) 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 7 ways as a sum of consecutive naturals, for example, 1068565 + ... + 1070578.

It is an arithmetic number, because the mean of its divisors is an integer number (288784440).

Almost surely, 22154117001 is an apocalyptic number.

It is an amenable number.

2154117001 is a deficient number, since it is larger than the sum of its proper divisors (156158519).

2154117001 is a wasteful number, since it uses less digits than its factorization.

2154117001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139215.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 2154117001 is about 46412.4660086059. The cubic root of 2154117001 is about 1291.4861787039.

The spelling of 2154117001 in words is "two billion, one hundred fifty-four million, one hundred seventeen thousand, one".

Divisors: 1 19 53 1007 2139143 40643717 113374579 2154117001