Search a number
-
+
1130639237 = 71324192281
BaseRepresentation
bin100001101100100…
…0010111110000101
32220210111102110022
41003121002332011
54303420423422
6304105304525
740006163210
oct10331027605
92823442408
101130639237
11530241aa2
12276795145
1315031a900
14aa236777
15693d9342
hex43642f85

1130639237 has 24 divisors (see below), whose sum is σ = 1403156160. Its totient is φ = 892045440.

The previous prime is 1130639201. The next prime is 1130639239. The reversal of 1130639237 is 7329360311.

It is not a de Polignac number, because 1130639237 - 26 = 1130639173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1130639197 and 1130639206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130639239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 494537 + ... + 496817.

It is an arithmetic number, because the mean of its divisors is an integer number (58464840).

Almost surely, 21130639237 is an apocalyptic number.

It is an amenable number.

1130639237 is a deficient number, since it is larger than the sum of its proper divisors (272516923).

1130639237 is a wasteful number, since it uses less digits than its factorization.

1130639237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733 (or 2720 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 1130639237 is about 33624.9793605885. The cubic root of 1130639237 is about 1041.7768064049.

Adding to 1130639237 its reverse (7329360311), we get a palindrome (8459999548).

The spelling of 1130639237 in words is "one billion, one hundred thirty million, six hundred thirty-nine thousand, two hundred thirty-seven".

Divisors: 1 7 13 91 169 419 1183 2281 2933 5447 15967 29653 38129 70811 207571 385489 495677 955739 2698423 6690173 12424607 86972249 161519891 1130639237