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1012900577 = 13480116229
BaseRepresentation
bin111100010111111…
…010001011100001
32121120221200101012
4330113322023201
54033300304302
6244301550305
734046340623
oct7427721341
92546850335
101012900577
1147a835217
12243275395
13131b06070
1498748c13
155ddcda52
hex3c5fa2e1

1012900577 has 8 divisors (see below), whose sum is σ = 1091110440. Its totient is φ = 934732800.

The previous prime is 1012900571. The next prime is 1012900631. The reversal of 1012900577 is 7750092101.

It can be written as a sum of positive squares in 4 ways, for example, as 277189201 + 735711376 = 16649^2 + 27124^2 .

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 1012900577 - 26 = 1012900513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012900571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54299 + ... + 70527.

It is an arithmetic number, because the mean of its divisors is an integer number (136388805).

Almost surely, 21012900577 is an apocalyptic number.

It is an amenable number.

1012900577 is a deficient number, since it is larger than the sum of its proper divisors (78209863).

1012900577 is a wasteful number, since it uses less digits than its factorization.

1012900577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21043.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 1012900577 is about 31826.0989912367. The cubic root of 1012900577 is about 1004.2818320796.

Adding to 1012900577 its reverse (7750092101), we get a palindrome (8762992678).

The spelling of 1012900577 in words is "one billion, twelve million, nine hundred thousand, five hundred seventy-seven".

Divisors: 1 13 4801 16229 62413 210977 77915429 1012900577