Search a number
-
+
2897121052884 = 2232382912662021
BaseRepresentation
bin101010001010001001110…
…111110000100011010100
3101020221222100101021012110
4222022021313300203110
5334431300442143014
610054530302351020
7416211234430542
oct52121167604324
911227870337173
102897121052884
11a17731341043
123a9593b8b470
13180274741176
14a0315780d92
15505628c7d59
hex2a289df08d4

2897121052884 has 48 divisors (see below), whose sum is σ = 7062369390720. Its totient is φ = 922605425280.

The previous prime is 2897121052883. The next prime is 2897121052897. The reversal of 2897121052884 is 4882501217982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897121052883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6102207 + ... + 6559814.

It is an arithmetic number, because the mean of its divisors is an integer number (147132695640).

Almost surely, 22897121052884 is an apocalyptic number.

It is an amenable number.

2897121052884 is an abundant number, since it is smaller than the sum of its proper divisors (4165248337836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2897121052884 is a wasteful number, since it uses less digits than its factorization.

2897121052884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12662880 (or 12662878 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 57.

The spelling of 2897121052884 in words is "two trillion, eight hundred ninety-seven billion, one hundred twenty-one million, fifty-two thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 829 1658 2487 3316 4974 9948 19067 38134 57201 76268 114402 228804 12662021 25324042 37986063 50648084 75972126 151944252 291226483 582452966 873679449 1164905932 1747358898 3494717796 10496815409 20993630818 31490446227 41987261636 62980892454 125961784908 241426754407 482853508814 724280263221 965707017628 1448560526442 2897121052884