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68743370 = 257394169
BaseRepresentation
bin1000001100011…
…11000011001010
311210100112011202
410012033003022
5120044241440
610453224202
71463210663
oct406170312
9153315152
1068743370
1135892a03
121b032062
131131b867
1491b636a
15607d615
hex418f0ca

68743370 has 16 divisors (see below), whose sum is σ = 125434440. Its totient is φ = 27120384.

The previous prime is 68743309. The next prime is 68743391. The reversal of 68743370 is 7334786.

It can be written as a sum of positive squares in 4 ways, for example, as 47018449 + 21724921 = 6857^2 + 4661^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46355 + ... + 47814.

Almost surely, 268743370 is an apocalyptic number.

68743370 is a deficient number, since it is larger than the sum of its proper divisors (56691070).

68743370 is a wasteful number, since it uses less digits than its factorization.

68743370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94249.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 68743370 is about 8291.1621622062. The cubic root of 68743370 is about 409.6474661497.

The spelling of 68743370 in words is "sixty-eight million, seven hundred forty-three thousand, three hundred seventy".

Divisors: 1 2 5 10 73 146 365 730 94169 188338 470845 941690 6874337 13748674 34371685 68743370