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68563835 = 5471392099
BaseRepresentation
bin1000001011000…
…11001101111011
311210000101220022
410011203031323
5120023020320
610445321055
71461532364
oct405431573
9153011808
1068563835
113578002a
121ab6618b
1311287c22
14916ab6b
156045325
hex416337b

68563835 has 16 divisors (see below), whose sum is σ = 84672000. Its totient is φ = 53272416.

The previous prime is 68563823. The next prime is 68563853. The reversal of 68563835 is 53836586.

It is a cyclic number.

It is not a de Polignac number, because 68563835 - 24 = 68563819 is a prime.

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, 31616 + ... + 33714.

It is an arithmetic number, because the mean of its divisors is an integer number (5292000).

Almost surely, 268563835 is an apocalyptic number.

68563835 is a deficient number, since it is larger than the sum of its proper divisors (16108165).

68563835 is a wasteful number, since it uses less digits than its factorization.

68563835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290.

The product of its digits is 518400, while the sum is 44.

The square root of 68563835 is about 8280.3281939788. The cubic root of 68563835 is about 409.2905339010.

The spelling of 68563835 in words is "sixty-eight million, five hundred sixty-three thousand, eight hundred thirty-five".

Divisors: 1 5 47 139 235 695 2099 6533 10495 32665 98653 291761 493265 1458805 13712767 68563835