Search a number
-
+
730870125 = 3531948987
BaseRepresentation
bin101011100100000…
…011000101101101
31212221021001022220
4223210003011231
52444100321000
6200305025553
724053202456
oct5344030555
91787231286
10730870125
113456145a7
121849252b9
13b855a43b
146d0d212d
154426e1a0
hex2b90316d

730870125 has 16 divisors (see below), whose sum is σ = 1216168512. Its totient is φ = 389797200.

The previous prime is 730870109. The next prime is 730870199. The reversal of 730870125 is 521078037.

It is not a de Polignac number, because 730870125 - 24 = 730870109 is a prime.

It is a super-2 number, since 2×7308701252 = 1068342279235031250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974119 + ... + 974868.

It is an arithmetic number, because the mean of its divisors is an integer number (76010532).

Almost surely, 2730870125 is an apocalyptic number.

730870125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

730870125 is a deficient number, since it is larger than the sum of its proper divisors (485298387).

730870125 is a wasteful number, since it uses less digits than its factorization.

730870125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949005 (or 1948995 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 730870125 is about 27034.6097623028. The cubic root of 730870125 is about 900.7689416103.

The spelling of 730870125 in words is "seven hundred thirty million, eight hundred seventy thousand, one hundred twenty-five".

Divisors: 1 3 5 15 25 75 125 375 1948987 5846961 9744935 29234805 48724675 146174025 243623375 730870125