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2708868505 = 57312938521
BaseRepresentation
bin1010000101110110…
…0000110110011001
320222210012210000011
42201131200312121
521021432243010
61124444241521
7124062000550
oct24135406631
96883183004
102708868505
1111700a4002
126372402a1
133422a0295
141b9aa0d97
1510cc37a8a
hexa1760d99

2708868505 has 32 divisors (see below), whose sum is σ = 3848398848. Its totient is φ = 1791244800.

The previous prime is 2708868499. The next prime is 2708868509. The reversal of 2708868505 is 5058688072.

It is a happy number.

It is not a de Polignac number, because 2708868505 - 217 = 2708737433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2708868509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313645 + ... + 322165.

It is an arithmetic number, because the mean of its divisors is an integer number (120262464).

Almost surely, 22708868505 is an apocalyptic number.

It is an amenable number.

2708868505 is a deficient number, since it is larger than the sum of its proper divisors (1139530343).

2708868505 is a wasteful number, since it uses less digits than its factorization.

2708868505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8857.

The product of its (nonzero) digits is 1075200, while the sum is 49.

The square root of 2708868505 is about 52046.7914957301. The cubic root of 2708868505 is about 1393.9995747642. Note that the first 3 decimals are identical.

The spelling of 2708868505 in words is "two billion, seven hundred eight million, eight hundred sixty-eight thousand, five hundred five".

Divisors: 1 5 7 31 35 155 217 293 1085 1465 2051 8521 9083 10255 42605 45415 59647 63581 264151 298235 317905 1320755 1849057 2496653 9245285 12483265 17476571 77396243 87382855 386981215 541773701 2708868505