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1513445012 = 221931960421
BaseRepresentation
bin101101000110101…
…0101011010010100
310220110210222020222
41122031111122110
511044420220022
6410102213512
752335033062
oct13215253224
93813728228
101513445012
11707333702
12362a24298
131b171bbc1
14105003032
158cd03242
hex5a355694

1513445012 has 12 divisors (see below), whose sum is σ = 2662253076. Its totient is φ = 752801280.

The previous prime is 1513444997. The next prime is 1513445033. The reversal of 1513445012 is 2105443151.

It can be written as a sum of positive squares in 2 ways, for example, as 831399556 + 682045456 = 28834^2 + 26116^2 .

It is a congruent number.

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, 979439 + ... + 980982.

It is an arithmetic number, because the mean of its divisors is an integer number (221854423).

Almost surely, 21513445012 is an apocalyptic number.

It is an amenable number.

1513445012 is a deficient number, since it is larger than the sum of its proper divisors (1148808064).

1513445012 is a wasteful number, since it uses less digits than its factorization.

1513445012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960618 (or 1960616 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1513445012 is about 38903.0206025188. The cubic root of 1513445012 is about 1148.1242292932.

Adding to 1513445012 its reverse (2105443151), we get a palindrome (3618888163).

The spelling of 1513445012 in words is "one billion, five hundred thirteen million, four hundred forty-five thousand, twelve".

Divisors: 1 2 4 193 386 772 1960421 3920842 7841684 378361253 756722506 1513445012