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60400081 = 716215323
BaseRepresentation
bin1110011001101…
…0000111010001
311012122122100001
43212122013101
5110430300311
65554330001
71332251350
oct346320721
9135578301
1060400081
1131104525
1218289901
13c68a0c1
148043997
1554814c1
hex399a1d1

60400081 has 8 divisors (see below), whose sum is σ = 69084224. Its totient is φ = 51729840.

The previous prime is 60400073. The next prime is 60400097. The reversal of 60400081 is 18000406.

60400081 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 60400081 - 23 = 60400073 is a prime.

It is a super-2 number, since 2×604000812 = 7296339569613122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60400181) 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, 8686 + ... + 14008.

It is an arithmetic number, because the mean of its divisors is an integer number (8635528).

Almost surely, 260400081 is an apocalyptic number.

It is an amenable number.

60400081 is a deficient number, since it is larger than the sum of its proper divisors (8684143).

60400081 is a wasteful number, since it uses less digits than its factorization.

60400081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6951.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 60400081 is about 7771.7489022742. The cubic root of 60400081 is about 392.3549839547.

Adding to 60400081 its reverse (18000406), we get a palindrome (78400487).

The spelling of 60400081 in words is "sixty million, four hundred thousand, eighty-one".

Divisors: 1 7 1621 5323 11347 37261 8628583 60400081