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68946444 = 2233791199
BaseRepresentation
bin1000001110000…
…00101000001100
311210201211202000
410013000220030
5120122241234
610501432300
71465015020
oct407005014
9153654660
1068946444
1135a11536
121b10b690
1311390118
14922a380
1560bd899
hex41c0a0c

68946444 has 48 divisors (see below), whose sum is σ = 204288000. Its totient is φ = 19698768.

The previous prime is 68946419. The next prime is 68946463. The reversal of 68946444 is 44464986.

It is a super-2 number, since 2×689464442 = 9507224280490272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68946444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44844 + ... + 46355.

It is an arithmetic number, because the mean of its divisors is an integer number (4256000).

Almost surely, 268946444 is an apocalyptic number.

It is an amenable number.

68946444 is an abundant number, since it is smaller than the sum of its proper divisors (135341556).

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

68946444 is a wasteful number, since it uses less digits than its factorization.

68946444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91219 (or 91211 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 68946444 is about 8303.3995447648. The cubic root of 68946444 is about 410.0504478872.

The spelling of 68946444 in words is "sixty-eight million, nine hundred forty-six thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 91199 182398 273597 364796 547194 638393 820791 1094388 1276786 1641582 1915179 2462373 2553572 3283164 3830358 4924746 5745537 7660716 9849492 11491074 17236611 22982148 34473222 68946444