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1680192130 = 25168019213
BaseRepresentation
bin110010000100101…
…1011001010000010
311100002120121022011
41210021123022002
511420112122010
6434420203134
756431253221
oct14411331202
94302517264
101680192130
11792474241
123aa8394aa
1320a132736
1411d20acb8
159c78ea8a
hex6425b282

1680192130 has 8 divisors (see below), whose sum is σ = 3024345852. Its totient is φ = 672076848.

The previous prime is 1680192119. The next prime is 1680192131. The reversal of 1680192130 is 312910861.

It can be written as a sum of positive squares in 2 ways, for example, as 1544725809 + 135466321 = 39303^2 + 11639^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1680192092 and 1680192101.

It is not an unprimeable number, because it can be changed into a prime (1680192131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84009597 + ... + 84009616.

Almost surely, 21680192130 is an apocalyptic number.

1680192130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1680192130 is a deficient number, since it is larger than the sum of its proper divisors (1344153722).

1680192130 is a wasteful number, since it uses less digits than its factorization.

1680192130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168019220.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1680192130 is about 40990.1467428454. The cubic root of 1680192130 is about 1188.8297065127.

The spelling of 1680192130 in words is "one billion, six hundred eighty million, one hundred ninety-two thousand, one hundred thirty".

Divisors: 1 2 5 10 168019213 336038426 840096065 1680192130