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68951952 = 2433193827
BaseRepresentation
bin1000001110000…
…01111110010000
311210202010022000
410013001332100
5120122430302
610501514000
71465040046
oct407017620
9153663260
1068951952
1135a15693
121b112900
1311392794
14922c396
1560c031c
hex41c1f90

68951952 has 80 divisors (see below), whose sum is σ = 199183680. Its totient is φ = 22837248.

The previous prime is 68951951. The next prime is 68951957. The reversal of 68951952 is 25915986.

68951952 is a `hidden beast` number, since 6 + 89 + 519 + 52 = 666.

It is a super-2 number, since 2×689519522 = 9508743369220608, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68951898 and 68951907.

It is not an unprimeable number, because it can be changed into a prime (68951951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82963 + ... + 83789.

It is an arithmetic number, because the mean of its divisors is an integer number (2489796).

Almost surely, 268951952 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 68951952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99591840).

68951952 is an abundant number, since it is smaller than the sum of its proper divisors (130231728).

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

68951952 is a wasteful number, since it uses less digits than its factorization.

68951952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037 (or 1025 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 68951952 is about 8303.7312095226. The cubic root of 68951952 is about 410.0613669794.

The spelling of 68951952 in words is "sixty-eight million, nine hundred fifty-one thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 193 216 386 432 579 772 827 1158 1544 1654 1737 2316 2481 3088 3308 3474 4632 4962 5211 6616 6948 7443 9264 9924 10422 13232 13896 14886 19848 20844 22329 27792 29772 39696 41688 44658 59544 83376 89316 119088 159611 178632 319222 357264 478833 638444 957666 1276888 1436499 1915332 2553776 2872998 3830664 4309497 5745996 7661328 8618994 11491992 17237988 22983984 34475976 68951952