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60728005 = 513934277
BaseRepresentation
bin1110011110101…
…0001011000101
311020021022011101
43213222023011
5111021244010
610005340101
71335115402
oct347521305
9136238141
1060728005
1131308938
1218407631
13c773440
1480cb2a9
1554e873a
hex39ea2c5

60728005 has 8 divisors (see below), whose sum is σ = 78479352. Its totient is φ = 44845248.

The previous prime is 60727999. The next prime is 60728021. The reversal of 60728005 is 50082706.

It can be written as a sum of positive squares in 4 ways, for example, as 2709316 + 58018689 = 1646^2 + 7617^2 .

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 60728005 - 25 = 60727973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467074 + ... + 467203.

It is an arithmetic number, because the mean of its divisors is an integer number (9809919).

Almost surely, 260728005 is an apocalyptic number.

60728005 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

60728005 is a deficient number, since it is larger than the sum of its proper divisors (17751347).

60728005 is a wasteful number, since it uses less digits than its factorization.

60728005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934295.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 60728005 is about 7792.8175264149. The cubic root of 60728005 is about 393.0637604358.

The spelling of 60728005 in words is "sixty million, seven hundred twenty-eight thousand, five".

Divisors: 1 5 13 65 934277 4671385 12145601 60728005