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160680490 = 2516068049
BaseRepresentation
bin10011001001111…
…00101000101010
3102012100102012021
421210330220222
5312113233430
623535535054
73660522145
oct1144745052
9365312167
10160680490
11827776a3
124598a48a
132739b419
14174a905c
15e18e07a
hex993ca2a

160680490 has 8 divisors (see below), whose sum is σ = 289224900. Its totient is φ = 64272192.

The previous prime is 160680467. The next prime is 160680491. The reversal of 160680490 is 94086061.

It can be written as a sum of positive squares in 2 ways, for example, as 158180929 + 2499561 = 12577^2 + 1581^2 .

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

It is not an unprimeable number, because it can be changed into a prime (160680491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8034015 + ... + 8034034.

Almost surely, 2160680490 is an apocalyptic number.

160680490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

160680490 is a deficient number, since it is larger than the sum of its proper divisors (128544410).

160680490 is a wasteful number, since it uses less digits than its factorization.

160680490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16068056.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 160680490 is about 12675.9808299003. The cubic root of 160680490 is about 543.6520739669.

The spelling of 160680490 in words is "one hundred sixty million, six hundred eighty thousand, four hundred ninety".

Divisors: 1 2 5 10 16068049 32136098 80340245 160680490