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2154254044 = 228315834099
BaseRepresentation
bin1000000001100111…
…0100111011011100
312120010121102222211
42000121310323130
513402442112134
6553433050204
7104245600015
oct20031647334
95503542884
102154254044
11a06024a48
12501556964
13284405647
1416617000c
15c91d2764
hex80674edc

2154254044 has 24 divisors (see below), whose sum is σ = 3818707200. Its totient is φ = 1063217904.

The previous prime is 2154254027. The next prime is 2154254099. The reversal of 2154254044 is 4404524512.

It is a junction number, because it is equal to n+sod(n) for n = 2154253997 and 2154254015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523507 + ... + 527605.

It is an arithmetic number, because the mean of its divisors is an integer number (159112800).

Almost surely, 22154254044 is an apocalyptic number.

It is an amenable number.

2154254044 is a deficient number, since it is larger than the sum of its proper divisors (1664453156).

2154254044 is a wasteful number, since it uses less digits than its factorization.

2154254044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769 (or 5767 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

The square root of 2154254044 is about 46413.9423449463. The cubic root of 2154254044 is about 1291.5135658556.

Adding to 2154254044 its reverse (4404524512), we get a palindrome (6558778556).

The spelling of 2154254044 in words is "two billion, one hundred fifty-four million, two hundred fifty-four thousand, forty-four".

Divisors: 1 2 4 83 166 332 1583 3166 4099 6332 8198 16396 131389 262778 340217 525556 680434 1360868 6488717 12977434 25954868 538563511 1077127022 2154254044