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68240276 = 22138397163
BaseRepresentation
bin1000001000101…
…00001110010100
311202101222001122
410010110032110
5114432142101
610434343112
71456014146
oct404241624
9152358048
1068240276
1135579a25
121aa2aa98
13111a3880
1490c4c96
155ece51b
hex4114394

68240276 has 48 divisors (see below), whose sum is σ = 132304704. Its totient is φ = 30606336.

The previous prime is 68240251. The next prime is 68240297. The reversal of 68240276 is 67204286.

It is a super-3 number, since 3×682402763 (a number of 24 digits) contains 333 as substring.

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, 418571 + ... + 418733.

It is an arithmetic number, because the mean of its divisors is an integer number (2756348).

Almost surely, 268240276 is an apocalyptic number.

It is an amenable number.

68240276 is a deficient number, since it is larger than the sum of its proper divisors (64064428).

68240276 is a wasteful number, since it uses less digits than its factorization.

68240276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 68240276 is about 8260.7672767123. The cubic root of 68240276 is about 408.6456920074.

The spelling of 68240276 in words is "sixty-eight million, two hundred forty thousand, two hundred seventy-six".

Divisors: 1 2 4 13 26 52 83 97 163 166 194 326 332 388 652 1079 1261 2119 2158 2522 4238 4316 5044 8051 8476 13529 15811 16102 27058 31622 32204 54116 63244 104663 175877 205543 209326 351754 411086 418652 703508 822172 1312313 2624626 5249252 17060069 34120138 68240276