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60497981 = 235874481
BaseRepresentation
bin1110011011001…
…0000000111101
311012211121121222
43212302000331
5110441413411
610000403125
71333136645
oct346620075
9135747558
1060497981
1131171035
12183164a5
13c6c282b
14806b525
1554a04db
hex39b203d

60497981 has 8 divisors (see below), whose sum is σ = 63249984. Its totient is φ = 57756160.

The previous prime is 60497971. The next prime is 60497993. The reversal of 60497981 is 18979406.

60497981 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 a de Polignac number, because none of the positive numbers 2k-60497981 is a prime.

It is a super-2 number, since 2×604979812 = 7320011410152722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60497911) 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, 11261 + ... + 15741.

It is an arithmetic number, because the mean of its divisors is an integer number (7906248).

Almost surely, 260497981 is an apocalyptic number.

It is an amenable number.

60497981 is a deficient number, since it is larger than the sum of its proper divisors (2752003).

60497981 is a wasteful number, since it uses less digits than its factorization.

60497981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 60497981 is about 7778.0448057336. The cubic root of 60497981 is about 392.5668535291.

The spelling of 60497981 in words is "sixty million, four hundred ninety-seven thousand, nine hundred eighty-one".

Divisors: 1 23 587 4481 13501 103063 2630347 60497981