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2154253141 = 17736472683
BaseRepresentation
bin1000000001100111…
…0100101101010101
312120010121101202101
42000121310231111
513402442100031
6553433042101
7104245564255
oct20031645525
95503541671
102154253141
11a060242a7
12501556331
13284405101
1416616d965
15c91d2361
hex80674b55

2154253141 has 16 divisors (see below), whose sum is σ = 2316657024. Its totient is φ = 1995922944.

The previous prime is 2154253091. The next prime is 2154253159. The reversal of 2154253141 is 1413524512.

It is not a de Polignac number, because 2154253141 - 219 = 2153728853 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 (2154256141) 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, 801586 + ... + 804268.

It is an arithmetic number, because the mean of its divisors is an integer number (144791064).

Almost surely, 22154253141 is an apocalyptic number.

It is an amenable number.

2154253141 is a deficient number, since it is larger than the sum of its proper divisors (162403883).

2154253141 is a wasteful number, since it uses less digits than its factorization.

2154253141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420.

The product of its digits is 4800, while the sum is 28.

The square root of 2154253141 is about 46413.9326172648. The cubic root of 2154253141 is about 1291.5133854007.

Adding to 2154253141 its reverse (1413524512), we get a palindrome (3567777653).

The spelling of 2154253141 in words is "two billion, one hundred fifty-four million, two hundred fifty-three thousand, one hundred forty-one".

Divisors: 1 17 73 647 1241 2683 10999 45611 47231 195859 802927 1735901 3329603 29510317 126720773 2154253141