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68748403 = 1923612579
BaseRepresentation
bin1000001100100…
…00010001110011
311210100210002011
410012100101303
5120044422103
610453303351
71463231443
oct406202163
9153323064
1068748403
1135896769
121b034b57
1311320c39
1491b8123
15607ed6d
hex4190473

68748403 has 16 divisors (see below), whose sum is σ = 76780800. Its totient is φ = 61253280.

The previous prime is 68748373. The next prime is 68748413. The reversal of 68748403 is 30484786.

It is a cyclic number.

It is not a de Polignac number, because 68748403 - 213 = 68740211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68748413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25368 + ... + 27946.

It is an arithmetic number, because the mean of its divisors is an integer number (4798800).

Almost surely, 268748403 is an apocalyptic number.

68748403 is a deficient number, since it is larger than the sum of its proper divisors (8032397).

68748403 is a wasteful number, since it uses less digits than its factorization.

68748403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 68748403 is about 8291.4656726058. The cubic root of 68748403 is about 409.6574632610.

The spelling of 68748403 in words is "sixty-eight million, seven hundred forty-eight thousand, four hundred three".

Divisors: 1 19 23 61 437 1159 1403 2579 26657 49001 59317 157319 1127023 2989061 3618337 68748403