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730196931 = 3243398977
BaseRepresentation
bin101011100001011…
…110101111000011
31212212222211212210
4223201132233003
52443412300211
6200242353203
724044400012
oct5341365703
91785884783
10730196931
113451a4842
1218465b803
13b8382bb9
146cd98a79
15441899a6
hex2b85ebc3

730196931 has 4 divisors (see below), whose sum is σ = 973595912. Its totient is φ = 486797952.

The previous prime is 730196927. The next prime is 730196941. The reversal of 730196931 is 139691037.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 730196931 - 22 = 730196927 is a prime.

It is a super-2 number, since 2×7301969312 = 1066375116083637522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 730196931.

It is not an unprimeable number, because it can be changed into a prime (730196941) 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 3 ways as a sum of consecutive naturals, for example, 121699486 + ... + 121699491.

It is an arithmetic number, because the mean of its divisors is an integer number (243398978).

Almost surely, 2730196931 is an apocalyptic number.

730196931 is a deficient number, since it is larger than the sum of its proper divisors (243398981).

730196931 is a wasteful number, since it uses less digits than its factorization.

730196931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243398980.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 730196931 is about 27022.1562981195. The cubic root of 730196931 is about 900.4922948659.

The spelling of 730196931 in words is "seven hundred thirty million, one hundred ninety-six thousand, nine hundred thirty-one".

Divisors: 1 3 243398977 730196931