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68236450 = 2525923131
BaseRepresentation
bin1000001000100…
…11010010100010
311202101202210221
410010103102202
5114432031300
610434313254
71456000042
oct404232242
9152352727
1068236450
1135577067
121aa2882a
13111a1bc9
1490c3722
155ecd31a
hex41134a2

68236450 has 24 divisors (see below), whose sum is σ = 129076560. Its totient is φ = 26830800.

The previous prime is 68236417. The next prime is 68236451. The reversal of 68236450 is 5463286.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68236451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8616 + ... + 14515.

It is an arithmetic number, because the mean of its divisors is an integer number (5378190).

Almost surely, 268236450 is an apocalyptic number.

68236450 is a deficient number, since it is larger than the sum of its proper divisors (60840110).

68236450 is a wasteful number, since it uses less digits than its factorization.

68236450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23202 (or 23197 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 68236450 is about 8260.5356969146. The cubic root of 68236450 is about 408.6380547403.

It can be divided in two parts, 68236 and 450, that added together give a palindrome (68686).

The spelling of 68236450 in words is "sixty-eight million, two hundred thirty-six thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 59 118 295 590 1475 2950 23131 46262 115655 231310 578275 1156550 1364729 2729458 6823645 13647290 34118225 68236450