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68272852442 = 2733538531553
BaseRepresentation
bin111111100101011000…
…010000110111011010
320112020001102020211112
4333211120100313122
52104310322234232
651210352100322
74634602446014
oct774530206732
9215201366745
1068272852442
1126a552775a3
12112945346a2
136590684552
1434394a51b4
151b98b984b2
hexfe5610dda

68272852442 has 32 divisors (see below), whose sum is σ = 104295392208. Its totient is φ = 33512472576.

The previous prime is 68272852433. The next prime is 68272852457. The reversal of 68272852442 is 24425827286.

It can be written as a sum of positive squares in 8 ways, for example, as 4869108841 + 63403743601 = 69779^2 + 251801^2 .

It is a super-2 number, since 2×682728524422 (a number of 22 digits) contains 22 as substring.

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, 43961138 + ... + 43962690.

Almost surely, 268272852442 is an apocalyptic number.

68272852442 is a deficient number, since it is larger than the sum of its proper divisors (36022539766).

68272852442 is a wasteful number, since it uses less digits than its factorization.

68272852442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834.

The product of its digits is 3440640, while the sum is 50.

The spelling of 68272852442 in words is "sixty-eight billion, two hundred seventy-two million, eight hundred fifty-two thousand, four hundred forty-two".

Divisors: 1 2 73 146 353 706 853 1553 1706 3106 25769 51538 62269 113369 124538 226738 301109 548209 602218 1096418 1324709 2649418 21980957 40019257 43961914 80038514 96703757 193407514 467622277 935244554 34136426221 68272852442