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1453664356 = 221721377417
BaseRepresentation
bin101011010100101…
…0010100001100100
310202022022210121121
41112221102201210
510434114224411
6400125023324
751010641334
oct12651224144
93668283547
101453664356
11686612601
123469b4b44
131a221aa31
14db0c10c4
1587945571
hex56a52864

1453664356 has 12 divisors (see below), whose sum is σ = 2693554668. Its totient is φ = 684077312.

The previous prime is 1453664327. The next prime is 1453664447. The reversal of 1453664356 is 6534663541.

It can be written as a sum of positive squares in 2 ways, for example, as 1032593956 + 421070400 = 32134^2 + 20520^2 .

It is a super-2 number, since 2×14536643562 = 4226280119809789472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10688641 + ... + 10688776.

It is an arithmetic number, because the mean of its divisors is an integer number (224462889).

Almost surely, 21453664356 is an apocalyptic number.

It is an amenable number.

1453664356 is a deficient number, since it is larger than the sum of its proper divisors (1239890312).

1453664356 is a wasteful number, since it uses less digits than its factorization.

1453664356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21377438 (or 21377436 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

The square root of 1453664356 is about 38126.9505205963. The cubic root of 1453664356 is about 1132.8038435122.

The spelling of 1453664356 in words is "one billion, four hundred fifty-three million, six hundred sixty-four thousand, three hundred fifty-six".

Divisors: 1 2 4 17 34 68 21377417 42754834 85509668 363416089 726832178 1453664356