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15304012045 = 572571701391
BaseRepresentation
bin11100100000011000…
…01011000100001101
31110111120012100210221
432100030023010031
5222320311341140
611010334031341
71051150645630
oct162014130415
943446170727
1015304012045
116543796843
122b71348551
13159b82003a
14a5275dc17
155e886714a
hex39030b10d

15304012045 has 16 divisors (see below), whose sum is σ = 21070038528. Its totient is φ = 10453340160.

The previous prime is 15304012043. The next prime is 15304012069. The reversal of 15304012045 is 54021040351.

It is a happy number.

It is not a de Polignac number, because 15304012045 - 21 = 15304012043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15304012043) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 841701 + ... + 859690.

It is an arithmetic number, because the mean of its divisors is an integer number (1316877408).

Almost surely, 215304012045 is an apocalyptic number.

It is an amenable number.

15304012045 is a deficient number, since it is larger than the sum of its proper divisors (5766026483).

15304012045 is a wasteful number, since it uses less digits than its factorization.

15304012045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701660.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 15304012045 its reverse (54021040351), we get a palindrome (69325052396).

The spelling of 15304012045 in words is "fifteen billion, three hundred four million, twelve thousand, forty-five".

Divisors: 1 5 7 35 257 1285 1799 8995 1701391 8506955 11909737 59548685 437257487 2186287435 3060802409 15304012045