Search a number
-
+
1072000072 = 2311134492087
BaseRepresentation
bin111111111001010…
…110110001001000
32202201011020122101
4333321112301020
54143413000242
6254212403144
735364564433
oct7771266110
92681136571
101072000072
11500130580
1225b0164b4
13141129190
14a253081a
15641a49b7
hex3fe56c48

1072000072 has 64 divisors (see below), whose sum is σ = 2367792000. Its totient is φ = 448573440.

The previous prime is 1072000049. The next prime is 1072000079. The reversal of 1072000072 is 2700002701.

It is a super-2 number, since 2×10720000722 = 2298368308736010368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1072000079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512613 + ... + 514699.

It is an arithmetic number, because the mean of its divisors is an integer number (36996750).

Almost surely, 21072000072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1072000072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183896000).

1072000072 is an abundant number, since it is smaller than the sum of its proper divisors (1295791928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1072000072 is a wasteful number, since it uses less digits than its factorization.

1072000072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566 (or 2562 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 1072000072 is about 32741.4121870148. The cubic root of 1072000072 is about 1023.4460122954.

Adding to 1072000072 its reverse (2700002701), we get a palindrome (3772002773).

The spelling of 1072000072 in words is "one billion, seventy-two million, seventy-two", and thus it is an aban number and an uban number.

Divisors: 1 2 4 8 11 13 22 26 44 52 88 104 143 286 449 572 898 1144 1796 2087 3592 4174 4939 5837 8348 9878 11674 16696 19756 22957 23348 27131 39512 45914 46696 54262 64207 91828 108524 128414 183656 217048 256828 298441 513656 596882 937063 1193764 1874126 2387528 3748252 7496504 10307693 12181819 20615386 24363638 41230772 48727276 82461544 97454552 134000009 268000018 536000036 1072000072