Search a number
-
+
60728983 = 721239367
BaseRepresentation
bin1110011110101…
…0011010010111
311020021100111121
43213222122113
5111021311413
610005344411
71335121300
oct347523227
9136240447
1060728983
1131309647
1218408107
13c773a13
1480cb7a7
1554e8b8d
hex39ea697

60728983 has 6 divisors (see below), whose sum is σ = 70643976. Its totient is φ = 52053372.

The previous prime is 60728971. The next prime is 60728989. The reversal of 60728983 is 38982706.

It is not a de Polignac number, because 60728983 - 221 = 58631831 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 (60728989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 619635 + ... + 619732.

It is an arithmetic number, because the mean of its divisors is an integer number (11773996).

Almost surely, 260728983 is an apocalyptic number.

60728983 is a deficient number, since it is larger than the sum of its proper divisors (9914993).

60728983 is a wasteful number, since it uses less digits than its factorization.

60728983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239381 (or 1239374 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 60728983 is about 7792.8802762522. The cubic root of 60728983 is about 393.0658704688.

The spelling of 60728983 in words is "sixty million, seven hundred twenty-eight thousand, nine hundred eighty-three".

Divisors: 1 7 49 1239367 8675569 60728983