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68337705 = 3517377243
BaseRepresentation
bin1000001001011…
…00000000101001
311202120220201010
410010230000221
5114443301310
610440414133
71456601202
oct404540051
9152526633
1068337705
1135636147
121aa77349
1311209017
14910c5a9
155eed320
hex412c029

68337705 has 32 divisors (see below), whose sum is σ = 118917504. Its totient is φ = 33371136.

The previous prime is 68337701. The next prime is 68337743. The reversal of 68337705 is 50773386.

It is not a de Polignac number, because 68337705 - 22 = 68337701 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68337701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5814 + ... + 13056.

It is an arithmetic number, because the mean of its divisors is an integer number (3716172).

Almost surely, 268337705 is an apocalyptic number.

It is an amenable number.

68337705 is a deficient number, since it is larger than the sum of its proper divisors (50579799).

68337705 is a wasteful number, since it uses less digits than its factorization.

68337705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7305.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 68337705 is about 8266.6622647838. The cubic root of 68337705 is about 408.8400787174.

The spelling of 68337705 in words is "sixty-eight million, three hundred thirty-seven thousand, seven hundred five".

Divisors: 1 3 5 15 17 37 51 85 111 185 255 555 629 1887 3145 7243 9435 21729 36215 108645 123131 267991 369393 615655 803973 1339955 1846965 4019865 4555847 13667541 22779235 68337705