Search a number
-
+
2154275329 = 61272912941
BaseRepresentation
bin1000000001100111…
…1010001000000001
312120010122112012011
42000121322020001
513402443302304
6553433332521
7104246016043
oct20031721001
95503575164
102154275329
11a06039a38
12501567141
1328441223b
14166177a93
15c91d8c04
hex8067a201

2154275329 has 8 divisors (see below), whose sum is σ = 2190562920. Its totient is φ = 2118019200.

The previous prime is 2154275327. The next prime is 2154275351. The reversal of 2154275329 is 9235724512.

It can be written as a sum of positive squares in 4 ways, for example, as 536385600 + 1617889729 = 23160^2 + 40223^2 .

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 2154275329 - 21 = 2154275327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154275291 and 2154275300.

It is not an unprimeable number, because it can be changed into a prime (2154275323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159999 + ... + 172939.

It is an arithmetic number, because the mean of its divisors is an integer number (273820365).

Almost surely, 22154275329 is an apocalyptic number.

It is an amenable number.

2154275329 is a deficient number, since it is larger than the sum of its proper divisors (36287591).

2154275329 is a wasteful number, since it uses less digits than its factorization.

2154275329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15731.

The product of its digits is 151200, while the sum is 40.

The square root of 2154275329 is about 46414.1716397050. The cubic root of 2154275329 is about 1291.5178194201.

The spelling of 2154275329 in words is "two billion, one hundred fifty-four million, two hundred seventy-five thousand, three hundred twenty-nine".

Divisors: 1 61 2729 12941 166469 789401 35315989 2154275329