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5112511131 = 371318727147
BaseRepresentation
bin1001100001011101…
…01011101010011011
3111012022002110211010
410300232223222123
540432300324011
62203150505003
7240456425160
oct46056535233
914168073733
105112511131
112193974312
12ba8205163
13636262c20
14366dcc067
151edc7d1a6
hex130baba9b

5112511131 has 16 divisors (see below), whose sum is σ = 8389762304. Its totient is φ = 2696709024.

The previous prime is 5112511109. The next prime is 5112511147. The reversal of 5112511131 is 1311152115.

It is not a de Polignac number, because 5112511131 - 26 = 5112511067 is a prime.

It is a super-2 number, since 2×51125111312 = 52275540129197798322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 5112511098 and 5112511107.

It is not an unprimeable number, because it can be changed into a prime (5112511631) 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, 9363301 + ... + 9363846.

It is an arithmetic number, because the mean of its divisors is an integer number (524360144).

Almost surely, 25112511131 is an apocalyptic number.

5112511131 is a deficient number, since it is larger than the sum of its proper divisors (3277251173).

5112511131 is a wasteful number, since it uses less digits than its factorization.

5112511131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18727170.

The product of its digits is 150, while the sum is 21.

The square root of 5112511131 is about 71501.8260675907. The cubic root of 5112511131 is about 1722.7070149456.

Adding to 5112511131 its reverse (1311152115), we get a palindrome (6423663246).

The spelling of 5112511131 in words is "five billion, one hundred twelve million, five hundred eleven thousand, one hundred thirty-one".

Divisors: 1 3 7 13 21 39 91 273 18727147 56181441 131090029 243452911 393270087 730358733 1704170377 5112511131