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2708491968 = 263271351673
BaseRepresentation
bin1010000101110000…
…0100111011000000
320222202111122111100
42201130010323000
521021333220333
61124432214400
7124055542020
oct24134047300
96882448440
102708491968
11116a967116
1263709a400
1334219aa90
141b9a03a80
1510cbb1213
hexa1704ec0

2708491968 has 168 divisors, whose sum is σ = 9555142688. Its totient is φ = 714313728.

The previous prime is 2708491943. The next prime is 2708491991. The reversal of 2708491968 is 8691948072.

It is a tau number, because it is divible by the number of its divisors (168).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26580 + ... + 78252.

Almost surely, 22708491968 is an apocalyptic number.

2708491968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2708491968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4777571344).

2708491968 is an abundant number, since it is smaller than the sum of its proper divisors (6846650720).

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

2708491968 is a wasteful number, since it uses less digits than its factorization.

2708491968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51711 (or 51698 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 2708491968 is about 52043.1740769143. The cubic root of 2708491968 is about 1393.9349823905.

The spelling of 2708491968 in words is "two billion, seven hundred eight million, four hundred ninety-one thousand, nine hundred sixty-eight".