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68570173402 = 2291182244369
BaseRepresentation
bin111111110111000110…
…011100111111011010
320112222202212201111221
4333313012130333122
52110412431022102
651300052442254
74645142566663
oct776706347732
9215882781457
1068570173402
11270980911a5
121135801938a
13660a154b03
143466b7c36a
151bb4d28637
hexff719cfda

68570173402 has 8 divisors (see below), whose sum is σ = 106401993300. Its totient is φ = 33102842304.

The previous prime is 68570173393. The next prime is 68570173409. The reversal of 68570173402 is 20437107586.

It can be written as a sum of positive squares in 2 ways, for example, as 65955998761 + 2614174641 = 256819^2 + 51129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68570173409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591122127 + ... + 591122242.

Almost surely, 268570173402 is an apocalyptic number.

68570173402 is a deficient number, since it is larger than the sum of its proper divisors (37831819898).

68570173402 is a wasteful number, since it uses less digits than its factorization.

68570173402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182244400.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 68570173402 in words is "sixty-eight billion, five hundred seventy million, one hundred seventy-three thousand, four hundred two".

Divisors: 1 2 29 58 1182244369 2364488738 34285086701 68570173402