Search a number
-
+
1304000705 = 57178720849
BaseRepresentation
bin100110110111001…
…0111100011000001
310100212201002200102
41031232113203001
510132311010310
6333221132145
744212552220
oct11556274301
93325632612
101304000705
1160a090037
1230485a055
1317a208c67
14c5282cb7
15797308a5
hex4db978c1

1304000705 has 16 divisors (see below), whose sum is σ = 1789430400. Its totient is φ = 893628672.

The previous prime is 1304000651. The next prime is 1304000707. The reversal of 1304000705 is 5070004031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1304000705 - 210 = 1303999681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1304000707) 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, 52121 + ... + 72969.

It is an arithmetic number, because the mean of its divisors is an integer number (111839400).

Almost surely, 21304000705 is an apocalyptic number.

1304000705 is the 20849-th octagonal number.

It is an amenable number.

1304000705 is a deficient number, since it is larger than the sum of its proper divisors (485429695).

1304000705 is a wasteful number, since it uses less digits than its factorization.

1304000705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22648.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 1304000705 is about 36110.9499321189. The cubic root of 1304000705 is about 1092.5113111428.

Adding to 1304000705 its reverse (5070004031), we get a palindrome (6374004736).

The spelling of 1304000705 in words is "one billion, three hundred four million, seven hundred five", and thus it is an aban number.

Divisors: 1 5 7 35 1787 8935 12509 20849 62545 104245 145943 729715 37257163 186285815 260800141 1304000705