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68353704 = 23321317247
BaseRepresentation
bin1000001001011…
…11111010101000
311202121201122200
410010233322220
5114444304304
610441020200
71456665636
oct404577250
9152551580
1068353704
1135647171
121aa84660
13112133a3
149114356
156002e39
hex412fea8

68353704 has 48 divisors (see below), whose sum is σ = 186563520. Its totient is φ = 22607520.

The previous prime is 68353699. The next prime is 68353709. The reversal of 68353704 is 40735386.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68353699) and next prime (68353709).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68353709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5809 + ... + 13055.

It is an arithmetic number, because the mean of its divisors is an integer number (3886740).

Almost surely, 268353704 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 68353704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93281760).

68353704 is an abundant number, since it is smaller than the sum of its proper divisors (118209816).

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

68353704 is a wasteful number, since it uses less digits than its factorization.

68353704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7390 (or 7383 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 68353704 is about 8267.6298901197. The cubic root of 68353704 is about 408.8719816619.

The spelling of 68353704 in words is "sixty-eight million, three hundred fifty-three thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 131 262 393 524 786 1048 1179 1572 2358 3144 4716 7247 9432 14494 21741 28988 43482 57976 65223 86964 130446 173928 260892 521784 949357 1898714 2848071 3797428 5696142 7594856 8544213 11392284 17088426 22784568 34176852 68353704