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68403107510 = 2553731767979
BaseRepresentation
bin111111101101001001…
…001001011010110110
320112120010111220012022
4333231021021122312
52110042143420020
651231323553142
74641043551263
oct775511113266
9215503456168
1068403107510
1127011853111
121131008b7b2
1365b165c15a
14344c8d026a
151ba5327625
hexfed2496b6

68403107510 has 32 divisors (see below), whose sum is σ = 127167265440. Its totient is φ = 26477238528.

The previous prime is 68403107491. The next prime is 68403107533. The reversal of 68403107510 is 1570130486.

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, 845300 + ... + 922679.

It is an arithmetic number, because the mean of its divisors is an integer number (3973977045).

Almost surely, 268403107510 is an apocalyptic number.

68403107510 is a deficient number, since it is larger than the sum of its proper divisors (58764157930).

68403107510 is a wasteful number, since it uses less digits than its factorization.

68403107510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768112.

The product of its (nonzero) digits is 20160, while the sum is 35.

Adding to 68403107510 its reverse (1570130486), we get a palindrome (69973237996).

The spelling of 68403107510 in words is "sixty-eight billion, four hundred three million, one hundred seven thousand, five hundred ten".

Divisors: 1 2 5 10 53 73 106 146 265 365 530 730 3869 7738 19345 38690 1767979 3535958 8839895 17679790 93702887 129062467 187405774 258124934 468514435 645312335 937028870 1290624670 6840310751 13680621502 34201553755 68403107510