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32120304325 = 521284812173
BaseRepresentation
bin11101111010100001…
…001111001011000101
310001220112000112002221
4131322201033023011
51011240244214300
622431133332341
72214654040054
oct357241171305
9101815015087
1032120304325
111269309005a
1262850370b1
13304b741a45
1417a9c9c39b
15c7ed5231a
hex77a84f2c5

32120304325 has 6 divisors (see below), whose sum is σ = 39829177394. Its totient is φ = 25696243440.

The previous prime is 32120304317. The next prime is 32120304341. The reversal of 32120304325 is 52340302123.

It can be written as a sum of positive squares in 3 ways, for example, as 234487969 + 31885816356 = 15313^2 + 178566^2 .

It is not a de Polignac number, because 32120304325 - 23 = 32120304317 is a prime.

It is a super-2 number, since 2×321203043252 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1284812173 = 32120304325 / (3 + 2 + 1 + 2 + 0 + 3 + 0 + 4 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32120304325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 642406062 + ... + 642406111.

Almost surely, 232120304325 is an apocalyptic number.

It is an amenable number.

32120304325 is a deficient number, since it is larger than the sum of its proper divisors (7708873069).

32120304325 is a wasteful number, since it uses less digits than its factorization.

32120304325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284812183 (or 1284812178 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 32120304325 its reverse (52340302123), we get a palindrome (84460606448).

The spelling of 32120304325 in words is "thirty-two billion, one hundred twenty million, three hundred four thousand, three hundred twenty-five".

Divisors: 1 5 25 1284812173 6424060865 32120304325