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60720385 = 5114126927
BaseRepresentation
bin1110011110100…
…0010100000001
311020020220201011
43213220110001
5111021023020
610005240521
71335054235
oct347502401
9136226634
1060720385
1131303140
1218403141
13c76cb2b
1480c85c5
1554e635a
hex39e8501

60720385 has 16 divisors (see below), whose sum is σ = 81430272. Its totient is φ = 43081600.

The previous prime is 60720383. The next prime is 60720389. The reversal of 60720385 is 58302706.

It is not a de Polignac number, because 60720385 - 21 = 60720383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60720383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11209 + ... + 15718.

It is an arithmetic number, because the mean of its divisors is an integer number (5089392).

Almost surely, 260720385 is an apocalyptic number.

It is an amenable number.

60720385 is a deficient number, since it is larger than the sum of its proper divisors (20709887).

60720385 is a wasteful number, since it uses less digits than its factorization.

60720385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26984.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 60720385 is about 7792.3285993341. The cubic root of 60720385 is about 393.0473195250.

The spelling of 60720385 in words is "sixty million, seven hundred twenty thousand, three hundred eighty-five".

Divisors: 1 5 11 41 55 205 451 2255 26927 134635 296197 1104007 1480985 5520035 12144077 60720385