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68957322 = 2371641841
BaseRepresentation
bin1000001110000…
…11010010001010
311210202101122220
410013003102022
5120123113242
610501554510
71465061520
oct407032212
9153671586
1068957322
1135a19725
121b115a36
1311395065
149230310
1560c1bec
hex41c348a

68957322 has 16 divisors (see below), whose sum is σ = 157616832. Its totient is φ = 19702080.

The previous prime is 68957311. The next prime is 68957323. The reversal of 68957322 is 22375986.

It is a super-2 number, since 2×689573222 = 9510224514823368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1641841 = 68957322 / (6 + 8 + 9 + 5 + 7 + 3 + 2 + 2).

It is not an unprimeable number, because it can be changed into a prime (68957323) 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, 820879 + ... + 820962.

It is an arithmetic number, because the mean of its divisors is an integer number (9851052).

Almost surely, 268957322 is an apocalyptic number.

68957322 is an abundant number, since it is smaller than the sum of its proper divisors (88659510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68957322 is a wasteful number, since it uses less digits than its factorization.

68957322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641853.

The product of its digits is 181440, while the sum is 42.

The square root of 68957322 is about 8304.0545518439. The cubic root of 68957322 is about 410.0720119397.

The spelling of 68957322 in words is "sixty-eight million, nine hundred fifty-seven thousand, three hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 1641841 3283682 4925523 9851046 11492887 22985774 34478661 68957322