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3148761380 = 225157438069
BaseRepresentation
bin1011101110101110…
…0100100100100100
322010102221122120212
42323223210210210
522422040331010
61240240514552
7141013013222
oct27353444444
98112848525
103148761380
111376437036
1273a61ba58
133b246b71b
1421c28bb12
1513667b505
hexbbae4924

3148761380 has 12 divisors (see below), whose sum is σ = 6612398940. Its totient is φ = 1259504544.

The previous prime is 3148761367. The next prime is 3148761401. The reversal of 3148761380 is 831678413.

3148761380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2255110144 + 893651236 = 47488^2 + 29894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78719015 + ... + 78719054.

It is an arithmetic number, because the mean of its divisors is an integer number (551033245).

Almost surely, 23148761380 is an apocalyptic number.

It is an amenable number.

3148761380 is an abundant number, since it is smaller than the sum of its proper divisors (3463637560).

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

3148761380 is a wasteful number, since it uses less digits than its factorization.

3148761380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157438078 (or 157438076 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 3148761380 is about 56113.8252126871. The cubic root of 3148761380 is about 1465.7050472235.

The spelling of 3148761380 in words is "three billion, one hundred forty-eight million, seven hundred sixty-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 157438069 314876138 629752276 787190345 1574380690 3148761380