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68272852432 = 244267053277
BaseRepresentation
bin111111100101011000…
…010000110111010000
320112020001102020211011
4333211120100313100
52104310322234212
651210352100304
74634602446001
oct774530206720
9215201366734
1068272852432
1126a55277594
1211294534694
136590684545
1434394a51a8
151b98b984a7
hexfe5610dd0

68272852432 has 10 divisors (see below), whose sum is σ = 132278651618. Its totient is φ = 34136426208.

The previous prime is 68272852391. The next prime is 68272852433. The reversal of 68272852432 is 23425827286.

68272852432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 60252575296 + 8020277136 = 245464^2 + 89556^2 .

It is a super-2 number, since 2×682728524322 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68272852433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2133526623 + ... + 2133526654.

Almost surely, 268272852432 is an apocalyptic number.

It is an amenable number.

68272852432 is a deficient number, since it is larger than the sum of its proper divisors (64005799186).

68272852432 is a wasteful number, since it uses less digits than its factorization.

68272852432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267053285 (or 4267053279 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 49.

The spelling of 68272852432 in words is "sixty-eight billion, two hundred seventy-two million, eight hundred fifty-two thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 4267053277 8534106554 17068213108 34136426216 68272852432