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68994054 = 23219673011
BaseRepresentation
bin1000001110011…
…00010000000110
311210211021001100
410013030100012
5120130302204
610502440530
71465303563
oct407142006
9153737040
1068994054
1135a44288
121b133146
13113a89ac
14923d86a
1560cca39
hex41cc406

68994054 has 48 divisors (see below), whose sum is σ = 159756480. Its totient is φ = 21455280.

The previous prime is 68994053. The next prime is 68994061. The reversal of 68994054 is 45049986.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68994053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21409 + ... + 24419.

It is an arithmetic number, because the mean of its divisors is an integer number (3328260).

Almost surely, 268994054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68994054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79878240).

68994054 is an abundant number, since it is smaller than the sum of its proper divisors (90762426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68994054 is a wasteful number, since it uses less digits than its factorization.

68994054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105 (or 3102 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 68994054 is about 8306.2659480660. The cubic root of 68994054 is about 410.1448110323.

The spelling of 68994054 in words is "sixty-eight million, nine hundred ninety-four thousand, fifty-four".

Divisors: 1 2 3 6 9 18 19 38 57 67 114 134 171 201 342 402 603 1206 1273 2546 3011 3819 6022 7638 9033 11457 18066 22914 27099 54198 57209 114418 171627 201737 343254 403474 514881 605211 1029762 1210422 1815633 3631266 3833003 7666006 11499009 22998018 34497027 68994054