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2005157482 = 21377318093
BaseRepresentation
bin111011110000100…
…0100011001101010
312011202001112221221
41313201010121222
513101310014412
6530545252254
7100455362116
oct16741043152
95152045857
102005157482
1193994a549
1247b63408a
1325c561a23
1415043c746
15bb080b07
hex7784466a

2005157482 has 8 divisors (see below), whose sum is σ = 3029690916. Its totient is φ = 995260512.

The previous prime is 2005157471. The next prime is 2005157489. The reversal of 2005157482 is 2847515002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2003547121 + 1610361 = 44761^2 + 1269^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2005157489) 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, 3658773 + ... + 3659320.

Almost surely, 22005157482 is an apocalyptic number.

2005157482 is a deficient number, since it is larger than the sum of its proper divisors (1024533434).

2005157482 is a wasteful number, since it uses less digits than its factorization.

2005157482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7318232.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 2005157482 is about 44778.9848254737. The cubic root of 2005157482 is about 1261.0031236539.

The spelling of 2005157482 in words is "two billion, five million, one hundred fifty-seven thousand, four hundred eighty-two".

Divisors: 1 2 137 274 7318093 14636186 1002578741 2005157482