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1230428577 = 3794761871
BaseRepresentation
bin100100101010110…
…1101100110100001
310011202021020200210
41021111231212201
510004442203302
6322032204333
742330320220
oct11125554641
93152236623
101230428577
115815aa224
122a40996a9
13167bb9561
14b95b0cb7
157304b66c
hex4956d9a1

1230428577 has 16 divisors (see below), whose sum is σ = 1876948992. Its totient is φ = 702348240.

The previous prime is 1230428569. The next prime is 1230428587. The reversal of 1230428577 is 7758240321.

It is not a de Polignac number, because 1230428577 - 23 = 1230428569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230428527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11049 + ... + 50822.

It is an arithmetic number, because the mean of its divisors is an integer number (117309312).

Almost surely, 21230428577 is an apocalyptic number.

It is an amenable number.

1230428577 is a deficient number, since it is larger than the sum of its proper divisors (646520415).

1230428577 is an equidigital number, since it uses as much as digits as its factorization.

1230428577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62828.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 1230428577 is about 35077.4653730853. The cubic root of 1230428577 is about 1071.5656983525.

Adding to 1230428577 its reverse (7758240321), we get a palindrome (8988668898).

The spelling of 1230428577 in words is "one billion, two hundred thirty million, four hundred twenty-eight thousand, five hundred seventy-seven".

Divisors: 1 3 7 21 947 2841 6629 19887 61871 185613 433097 1299291 58591837 175775511 410142859 1230428577