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2231428735 = 512712132897
BaseRepresentation
bin1000010100000000…
…1110011001111111
312202111211022202201
42011000032121333
514032221204420
61005231132331
7106203555064
oct20500163177
95674738681
102231428735
11a45646488
125233740a7
132973b6a43
141724dcc6b
15d0d7910a
hex8500e67f

2231428735 has 16 divisors (see below), whose sum is σ = 2701956096. Its totient is φ = 1769015808.

The previous prime is 2231428733. The next prime is 2231428747. The reversal of 2231428735 is 5378241322.

It is a cyclic number.

It is not a de Polignac number, because 2231428735 - 21 = 2231428733 is a prime.

It is a super-3 number, since 3×22314287353 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231428694 and 2231428703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231428733) 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, 768807 + ... + 771703.

It is an arithmetic number, because the mean of its divisors is an integer number (168872256).

Almost surely, 22231428735 is an apocalyptic number.

2231428735 is a deficient number, since it is larger than the sum of its proper divisors (470527361).

2231428735 is a wasteful number, since it uses less digits than its factorization.

2231428735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242.

The product of its digits is 80640, while the sum is 37.

The square root of 2231428735 is about 47238.0009632076. Note that the first 3 decimals coincide. The cubic root of 2231428735 is about 1306.7555113722.

The spelling of 2231428735 in words is "two billion, two hundred thirty-one million, four hundred twenty-eight thousand, seven hundred thirty-five".

Divisors: 1 5 127 635 1213 2897 6065 14485 154051 367919 770255 1839595 3514061 17570305 446285747 2231428735