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730080861 = 31714315311
BaseRepresentation
bin101011100001000…
…010011001011101
31212212202221122220
4223201002121131
52443400041421
6200240055553
724043404426
oct5341023135
91785687586
10730080861
11345125614
121846045b9
13b8342113
146cd6864d
15441653c6
hex2b84265d

730080861 has 8 divisors (see below), whose sum is σ = 1030702464. Its totient is φ = 458089920.

The previous prime is 730080817. The next prime is 730080863. The reversal of 730080861 is 168080037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 730080861 - 26 = 730080797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730080863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7157605 + ... + 7157706.

It is an arithmetic number, because the mean of its divisors is an integer number (128837808).

Almost surely, 2730080861 is an apocalyptic number.

It is an amenable number.

730080861 is a deficient number, since it is larger than the sum of its proper divisors (300621603).

730080861 is a wasteful number, since it uses less digits than its factorization.

730080861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14315331.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 730080861 is about 27020.0085307166. The cubic root of 730080861 is about 900.4445791175. Note that the first 3 decimals are identical.

The spelling of 730080861 in words is "seven hundred thirty million, eighty thousand, eight hundred sixty-one".

Divisors: 1 3 17 51 14315311 42945933 243360287 730080861