Search a number
-
+
1047013660 = 225711679879
BaseRepresentation
bin111110011010000…
…010100100011100
32200222010210201201
4332122002210130
54121013414120
6251521045244
734642316650
oct7632024434
92628123651
101047013660
11498014950
12252786824
13138bbb214
149d0a8a60
1561dbb40a
hex3e68291c

1047013660 has 48 divisors (see below), whose sum is σ = 2741276160. Its totient is φ = 326341440.

The previous prime is 1047013637. The next prime is 1047013661. The reversal of 1047013660 is 663107401.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047013661) 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, 338400 + ... + 341479.

It is an arithmetic number, because the mean of its divisors is an integer number (57109920).

Almost surely, 21047013660 is an apocalyptic number.

1047013660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1047013660 is an abundant number, since it is smaller than the sum of its proper divisors (1694262500).

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

1047013660 is a wasteful number, since it uses less digits than its factorization.

1047013660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679906 (or 679904 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1047013660 is about 32357.5904541732. The cubic root of 1047013660 is about 1015.4318529241.

The spelling of 1047013660 in words is "one billion, forty-seven million, thirteen thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 679879 1359758 2719516 3399395 4759153 6798790 7478669 9518306 13597580 14957338 19036612 23795765 29914676 37393345 47591530 52350683 74786690 95183060 104701366 149573380 209402732 261753415 523506830 1047013660