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60861997 = 719457609
BaseRepresentation
bin1110100000101…
…0111000101101
311020112002222001
43220022320231
5111040040442
610012252301
71336214140
oct350127055
9136462861
1060861997
113139a579
1218471091
13c7bc421
148124057
1555232b7
hex3a0ae2d

60861997 has 8 divisors (see below), whose sum is σ = 73217600. Its totient is φ = 49421664.

The previous prime is 60861973. The next prime is 60862001. The reversal of 60861997 is 79916806.

60861997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 60861997 - 27 = 60861869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60861907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228672 + ... + 228937.

It is an arithmetic number, because the mean of its divisors is an integer number (9152200).

Almost surely, 260861997 is an apocalyptic number.

It is an amenable number.

60861997 is a deficient number, since it is larger than the sum of its proper divisors (12355603).

60861997 is a wasteful number, since it uses less digits than its factorization.

60861997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457635.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 60861997 is about 7801.4099366717. The cubic root of 60861997 is about 393.3526371036.

The spelling of 60861997 in words is "sixty million, eight hundred sixty-one thousand, nine hundred ninety-seven".

Divisors: 1 7 19 133 457609 3203263 8694571 60861997