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2708238987 = 32364382601
BaseRepresentation
bin1010000101101100…
…0111001010001011
320222202000210110200
42201123013022023
521021302121422
61124422543243
7124053436326
oct24133071213
96882023420
102708238987
11116a804043
12636b97b23
1334210c89c
141b99797bd
1510cb612ac
hexa16c728b

2708238987 has 12 divisors (see below), whose sum is σ = 3913021944. Its totient is φ = 1804975200.

The previous prime is 2708238971. The next prime is 2708238991. The reversal of 2708238987 is 7898328072.

It is not a de Polignac number, because 2708238987 - 24 = 2708238971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2708228987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8514 + ... + 74087.

It is an arithmetic number, because the mean of its divisors is an integer number (326085162).

Almost surely, 22708238987 is an apocalyptic number.

2708238987 is a deficient number, since it is larger than the sum of its proper divisors (1204782957).

2708238987 is a wasteful number, since it uses less digits than its factorization.

2708238987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86250 (or 86247 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 2708238987 is about 52040.7435285085. The cubic root of 2708238987 is about 1393.8915818501.

The spelling of 2708238987 in words is "two billion, seven hundred eight million, two hundred thirty-eight thousand, nine hundred eighty-seven".

Divisors: 1 3 9 3643 10929 32787 82601 247803 743409 300915443 902746329 2708238987