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1456160661 = 32161795629
BaseRepresentation
bin101011011001011…
…0011111110010101
310202111000121220100
41112302303332111
510440234120121
6400254324313
751041106234
oct12662637625
93674017810
101456160661
11687a6806a
123477b9699
131a28b3037
14db570b1b
1587c8a026
hex56cb3f95

1456160661 has 6 divisors (see below), whose sum is σ = 2103343190. Its totient is φ = 970773768.

The previous prime is 1456160623. The next prime is 1456160669. The reversal of 1456160661 is 1660616541.

It is a happy number.

1456160661 is a `hidden beast` number, since 1 + 45 + 6 + 1 + 606 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 950180625 + 505980036 = 30825^2 + 22494^2 .

It is not a de Polignac number, because 1456160661 - 222 = 1451966357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456160669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80897806 + ... + 80897823.

Almost surely, 21456160661 is an apocalyptic number.

It is an amenable number.

1456160661 is a deficient number, since it is larger than the sum of its proper divisors (647182529).

1456160661 is a wasteful number, since it uses less digits than its factorization.

1456160661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161795635 (or 161795632 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1456160661 is about 38159.6732297330. The cubic root of 1456160661 is about 1133.4519084606.

The spelling of 1456160661 in words is "one billion, four hundred fifty-six million, one hundred sixty thousand, six hundred sixty-one".

Divisors: 1 3 9 161795629 485386887 1456160661