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68841897 = 367342497
BaseRepresentation
bin1000001101001…
…11000110101001
311210112112022220
410012213012221
5120110420042
610455304253
71464101145
oct406470651
9153475286
1068841897
113594aa33
121b07b089
1311354667
149200225
15609c8ec
hex41a71a9

68841897 has 8 divisors (see below), whose sum is σ = 93159456. Its totient is φ = 45209472.

The previous prime is 68841889. The next prime is 68841901. The reversal of 68841897 is 79814886.

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

It is not a de Polignac number, because 68841897 - 23 = 68841889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68841197) 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, 171048 + ... + 171449.

It is an arithmetic number, because the mean of its divisors is an integer number (11644932).

Almost surely, 268841897 is an apocalyptic number.

68841897 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

68841897 is a deficient number, since it is larger than the sum of its proper divisors (24317559).

68841897 is a wasteful number, since it uses less digits than its factorization.

68841897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342567.

The product of its digits is 774144, while the sum is 51.

The square root of 68841897 is about 8297.1017228910. The cubic root of 68841897 is about 409.8430829221.

The spelling of 68841897 in words is "sixty-eight million, eight hundred forty-one thousand, eight hundred ninety-seven".

Divisors: 1 3 67 201 342497 1027491 22947299 68841897