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1255132061 = 3153763927
BaseRepresentation
bin100101011001111…
…1100101110011101
310020110202022111122
41022303330232131
510032303211221
6324313500325
743050306101
oct11263745635
93213668448
101255132061
11594542327
122b04116a5
131700587c1
14bc9a1901
15752caeab
hex4acfcb9d

1255132061 has 8 divisors (see below), whose sum is σ = 1320067584. Its totient is φ = 1191724560.

The previous prime is 1255132051. The next prime is 1255132079. The reversal of 1255132061 is 1602315521.

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

It is a cyclic number.

It is not a de Polignac number, because 1255132061 - 214 = 1255115677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1255132061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255132051) 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 7 ways as a sum of consecutive naturals, for example, 380321 + ... + 383606.

It is an arithmetic number, because the mean of its divisors is an integer number (165008448).

Almost surely, 21255132061 is an apocalyptic number.

It is an amenable number.

1255132061 is a deficient number, since it is larger than the sum of its proper divisors (64935523).

1255132061 is an equidigital number, since it uses as much as digits as its factorization.

1255132061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764011.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1255132061 is about 35427.8430192977. The cubic root of 1255132061 is about 1078.6895574213.

Adding to 1255132061 its reverse (1602315521), we get a palindrome (2857447582).

The spelling of 1255132061 in words is "one billion, two hundred fifty-five million, one hundred thirty-two thousand, sixty-one".

Divisors: 1 31 53 1643 763927 23681737 40488131 1255132061