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1501500065 = 51323100001
BaseRepresentation
bin101100101111111…
…0001001010100001
310212122100002212112
41121133301022201
511033341000230
6404554205105
752131353132
oct13137611241
93778302775
101501500065
1170061524a
1235aa23795
131ac0c8ca0
141035b3c89
158bc43d95
hex597f12a1

1501500065 has 8 divisors (see below), whose sum is σ = 1940400168. Its totient is φ = 1108800000.

The previous prime is 1501500041. The next prime is 1501500089. The reversal of 1501500065 is 5600051051.

It is an interprime number because it is at equal distance from previous prime (1501500041) and next prime (1501500089).

It can be written as a sum of positive squares in 4 ways, for example, as 20866624 + 1480633441 = 4568^2 + 38479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1501500065 - 214 = 1501483681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1501500065.

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, 11549936 + ... + 11550065.

It is an arithmetic number, because the mean of its divisors is an integer number (242550021).

Almost surely, 21501500065 is an apocalyptic number.

It is an amenable number.

1501500065 is a deficient number, since it is larger than the sum of its proper divisors (438900103).

1501500065 is a wasteful number, since it uses less digits than its factorization.

1501500065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23100019.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1501500065 is about 38749.1943787222. The cubic root of 1501500065 is about 1145.0957033714.

The spelling of 1501500065 in words is "one billion, five hundred one million, five hundred thousand, sixty-five".

Divisors: 1 5 13 65 23100001 115500005 300300013 1501500065