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3125303545 = 5721317197293
BaseRepresentation
bin1011101001001000…
…0101100011111001
322001210210212111011
42322102011203321
522400034203140
61234042033521
7140306433100
oct27222054371
98053725434
103125303545
1113641748a1
127327a88a1
133aa647450
14219103037
15134595cea
hexba4858f9

3125303545 has 96 divisors (see below), whose sum is σ = 5016943008. Its totient is φ = 1846075392.

The previous prime is 3125303537. The next prime is 3125303551. The reversal of 3125303545 is 5453035213.

3125303545 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 16 ways, for example, as 22924944 + 3102378601 = 4788^2 + 55699^2 .

It is not a de Polignac number, because 3125303545 - 23 = 3125303537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10666419 + ... + 10666711.

It is an arithmetic number, because the mean of its divisors is an integer number (52259823).

Almost surely, 23125303545 is an apocalyptic number.

3125303545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3125303545 is a deficient number, since it is larger than the sum of its proper divisors (1891639463).

3125303545 is a wasteful number, since it uses less digits than its factorization.

3125303545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 3125303545 is about 55904.4143605852. The cubic root of 3125303545 is about 1462.0562046919.

Adding to 3125303545 its reverse (5453035213), we get a palindrome (8578338758).

The spelling of 3125303545 in words is "three billion, one hundred twenty-five million, three hundred three thousand, five hundred forty-five".

Divisors: 1 5 7 13 17 35 49 65 85 91 119 197 221 245 293 455 595 637 833 985 1105 1379 1465 1547 2051 2561 3185 3349 3809 4165 4981 6895 7735 9653 10255 10829 12805 14357 16745 17927 19045 23443 24905 26663 34867 43537 48265 54145 57721 64753 71785 89635 117215 125489 133315 164101 174335 186641 217685 244069 288605 304759 323765 404047 453271 627445 750373 820505 933205 981257 1220345 1523795 2020235 2133313 2266355 2828329 3172897 3751865 4906285 5252611 6868799 10666565 12756341 14141645 15864485 26263055 34343995 36768277 48081593 63781705 89294387 183841385 240407965 446471935 625060709 3125303545