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68842467 = 348391013
BaseRepresentation
bin1000001101001…
…11001111100011
311210112120010000
410012213033203
5120110424332
610455311043
71464102621
oct406471743
9153476100
1068842467
1135950401
121b07b483
13113549b5
149200511
15609cb7c
hex41a73e3

68842467 has 20 divisors (see below), whose sum is σ = 103062960. Its totient is φ = 45795024.

The previous prime is 68842457. The next prime is 68842481. The reversal of 68842467 is 76424886.

It is not a de Polignac number, because 68842467 - 219 = 68318179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68842457) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67453 + ... + 68465.

It is an arithmetic number, because the mean of its divisors is an integer number (5153148).

Almost surely, 268842467 is an apocalyptic number.

68842467 is a deficient number, since it is larger than the sum of its proper divisors (34220493).

68842467 is a wasteful number, since it uses less digits than its factorization.

68842467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864 (or 1855 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 68842467 is about 8297.1360721637. The cubic root of 68842467 is about 409.8442140642.

The spelling of 68842467 in words is "sixty-eight million, eight hundred forty-two thousand, four hundred sixty-seven".

Divisors: 1 3 9 27 81 839 1013 2517 3039 7551 9117 22653 27351 67959 82053 849907 2549721 7649163 22947489 68842467