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679912970 = 25116181027
BaseRepresentation
bin101000100001101…
…010011000001010
31202101101011020212
4220201222120022
52343024203340
6151244521122
722564110362
oct5041523012
91671334225
10679912970
1131987a750
1216b8501a2
13aab28489
14664299a2
153ea55a65
hex2886a60a

679912970 has 16 divisors (see below), whose sum is σ = 1335102048. Its totient is φ = 247241040.

The previous prime is 679912957. The next prime is 679912973. The reversal of 679912970 is 79219976.

It is not an unprimeable number, because it can be changed into a prime (679912973) 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 7 ways as a sum of consecutive naturals, for example, 3090404 + ... + 3090623.

It is an arithmetic number, because the mean of its divisors is an integer number (83443878).

Almost surely, 2679912970 is an apocalyptic number.

679912970 is a deficient number, since it is larger than the sum of its proper divisors (655189078).

679912970 is a wasteful number, since it uses less digits than its factorization.

679912970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181045.

The product of its (nonzero) digits is 428652, while the sum is 50.

The square root of 679912970 is about 26075.1408433397. The cubic root of 679912970 is about 879.3284175285.

The spelling of 679912970 in words is "six hundred seventy-nine million, nine hundred twelve thousand, nine hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 6181027 12362054 30905135 61810270 67991297 135982594 339956485 679912970