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60868821 = 3131560739
BaseRepresentation
bin1110100000110…
…0100011010101
311020112110022210
43220030203111
5111040300241
610012344033
71336243056
oct350144325
9136473283
1060868821
11313a4712
1218475019
13c7c2570
14812672d
155525316
hex3a0c8d5

60868821 has 8 divisors (see below), whose sum is σ = 87401440. Its totient is φ = 37457712.

The previous prime is 60868817. The next prime is 60868859. The reversal of 60868821 is 12886806.

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

It is not a de Polignac number, because 60868821 - 22 = 60868817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1560739 = 60868821 / (6 + 0 + 8 + 6 + 8 + 8 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60868821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60868861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780331 + ... + 780408.

It is an arithmetic number, because the mean of its divisors is an integer number (10925180).

Almost surely, 260868821 is an apocalyptic number.

It is an amenable number.

60868821 is a deficient number, since it is larger than the sum of its proper divisors (26532619).

60868821 is a wasteful number, since it uses less digits than its factorization.

60868821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560755.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 60868821 is about 7801.8472812533. The cubic root of 60868821 is about 393.3673377828.

The spelling of 60868821 in words is "sixty million, eight hundred sixty-eight thousand, eight hundred twenty-one".

Divisors: 1 3 13 39 1560739 4682217 20289607 60868821