Search a number
-
+
16980597 = 3623293
BaseRepresentation
bin100000011000…
…1101001110101
31011221201000000
41000301221311
513321334342
61403541513
7264222054
oct100615165
934851000
1016980597
119648857
12582a899
133696cba
14238039b
15175644c
hex1031a75

16980597 has 14 divisors (see below), whose sum is σ = 25460342. Its totient is φ = 11319912.

The previous prime is 16980559. The next prime is 16980599. The reversal of 16980597 is 79508961.

It can be written as a sum of positive squares in only one way, i.e., 9979281 + 7001316 = 3159^2 + 2646^2 .

It is not a de Polignac number, because 16980597 - 216 = 16915061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16980599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 10918 + ... + 12375.

Almost surely, 216980597 is an apocalyptic number.

It is an amenable number.

16980597 is a deficient number, since it is larger than the sum of its proper divisors (8479745).

16980597 is an frugal number, since it uses more digits than its factorization.

16980597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23311 (or 23296 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 16980597 is about 4120.7519944787. The cubic root of 16980597 is about 257.0302971645.

The spelling of 16980597 in words is "sixteen million, nine hundred eighty thousand, five hundred ninety-seven".

Divisors: 1 3 9 27 81 243 729 23293 69879 209637 628911 1886733 5660199 16980597