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2905317140 = 2251113205987
BaseRepresentation
bin1010110100101011…
…1001111100010100
321111110212101212112
42231022321330110
521422230122030
61200143010152
7131665534235
oct25512717424
97443771775
102905317140
111260a80850
12690b99958
13373bb2c8b
141d7bdb08c
151200dea95
hexad2b9f14

2905317140 has 24 divisors (see below), whose sum is σ = 6655817952. Its totient is φ = 1056478880.

The previous prime is 2905317137. The next prime is 2905317199. The reversal of 2905317140 is 417135092.

It is a junction number, because it is equal to n+sod(n) for n = 2905317097 and 2905317106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6602774 + ... + 6603213.

It is an arithmetic number, because the mean of its divisors is an integer number (277325748).

Almost surely, 22905317140 is an apocalyptic number.

2905317140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2905317140 is an abundant number, since it is smaller than the sum of its proper divisors (3750500812).

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

2905317140 is a wasteful number, since it uses less digits than its factorization.

2905317140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13206007 (or 13206005 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 2905317140 is about 53900.9938683880. The cubic root of 2905317140 is about 1426.9141634216.

The spelling of 2905317140 in words is "two billion, nine hundred five million, three hundred seventeen thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 13205987 26411974 52823948 66029935 132059870 145265857 264119740 290531714 581063428 726329285 1452658570 2905317140