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83508001 = 372256973
BaseRepresentation
bin1001111101000…
…11101100100001
312211010122102221
410332203230201
5132334224001
612141511041
72032543363
oct476435441
9184118387
1083508001
1143157885
1223b72481
13143bb025
14b13ad33
1574e81a1
hex4fa3b21

83508001 has 4 divisors (see below), whose sum is σ = 85765012. Its totient is φ = 81250992.

The previous prime is 83507993. The next prime is 83508011. The reversal of 83508001 is 10080538.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67897600 + 15610401 = 8240^2 + 3951^2 .

It is a cyclic number.

It is not a de Polignac number, because 83508001 - 23 = 83507993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83508011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128450 + ... + 1128523.

It is an arithmetic number, because the mean of its divisors is an integer number (21441253).

Almost surely, 283508001 is an apocalyptic number.

It is an amenable number.

83508001 is a deficient number, since it is larger than the sum of its proper divisors (2257011).

83508001 is a wasteful number, since it uses less digits than its factorization.

83508001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257010.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 83508001 is about 9138.2712260033. The cubic root of 83508001 is about 437.0951919238.

Adding to 83508001 its reverse (10080538), we get a palindrome (93588539).

The spelling of 83508001 in words is "eighty-three million, five hundred eight thousand, one".

Divisors: 1 37 2256973 83508001