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68947848 = 2335291223
BaseRepresentation
bin1000001110000…
…00111110001000
311210201220200000
410013000332020
5120122312343
610501443000
71465022064
oct407007610
9153656600
1068947848
1135a125a2
121b110460
1311390958
14922aaa4
1560bded3
hex41c0f88

68947848 has 96 divisors (see below), whose sum is σ = 200491200. Its totient is φ = 22171968.

The previous prime is 68947847. The next prime is 68947849. The reversal of 68947848 is 84874986.

It is an interprime number because it is at equal distance from previous prime (68947847) and next prime (68947849).

It is a super-2 number, since 2×689478482 = 9507611487662208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 68947794 and 68947803.

It is not an unprimeable number, because it can be changed into a prime (68947847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55765 + ... + 56987.

It is an arithmetic number, because the mean of its divisors is an integer number (2088450).

Almost surely, 268947848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68947848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100245600).

68947848 is an abundant number, since it is smaller than the sum of its proper divisors (131543352).

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

68947848 is a wasteful number, since it uses less digits than its factorization.

68947848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1257 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 68947848 is about 8303.4840880199. The cubic root of 68947848 is about 410.0532312405.

The spelling of 68947848 in words is "sixty-eight million, nine hundred forty-seven thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 29 36 54 58 72 81 87 108 116 162 174 216 232 243 261 324 348 486 522 648 696 783 972 1044 1223 1566 1944 2088 2349 2446 3132 3669 4698 4892 6264 7047 7338 9396 9784 11007 14094 14676 18792 22014 28188 29352 33021 35467 44028 56376 66042 70934 88056 99063 106401 132084 141868 198126 212802 264168 283736 297189 319203 396252 425604 594378 638406 792504 851208 957609 1188756 1276812 1915218 2377512 2553624 2872827 3830436 5745654 7660872 8618481 11491308 17236962 22982616 34473924 68947848