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7689740252 = 2215971203779
BaseRepresentation
bin1110010100101100…
…00001111111011100
3201211220121021112112
413022112001333130
5111222033142002
63311013453152
7361362466535
oct71226017734
921756537475
107689740252
113296726737
1215a73411b8
1395719247c
1452d3c368c
15300161852
hex1ca581fdc

7689740252 has 12 divisors (see below), whose sum is σ = 13465483080. Its totient is φ = 3842459376.

The previous prime is 7689740251. The next prime is 7689740273. The reversal of 7689740252 is 2520479867.

It is a self number, because there is not a number n which added to its sum of digits gives 7689740252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7689740251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595502 + ... + 608277.

It is an arithmetic number, because the mean of its divisors is an integer number (1122123590).

Almost surely, 27689740252 is an apocalyptic number.

It is an amenable number.

7689740252 is a deficient number, since it is larger than the sum of its proper divisors (5775742828).

7689740252 is a wasteful number, since it uses less digits than its factorization.

7689740252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205380 (or 1205378 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 7689740252 is about 87691.1640474683. The cubic root of 7689740252 is about 1973.8033879033.

The spelling of 7689740252 in words is "seven billion, six hundred eighty-nine million, seven hundred forty thousand, two hundred fifty-two".

Divisors: 1 2 4 1597 3194 6388 1203779 2407558 4815116 1922435063 3844870126 7689740252