Search a number
-
+
32120101 = 132470777
BaseRepresentation
bin111101010000…
…1110100100101
32020102212111101
41322201310211
531210320401
63104240101
7540005416
oct172416445
966385441
1032120101
1117149342
12a910031
136867ca0
1443a180d
152c47101
hex1ea1d25

32120101 has 4 divisors (see below), whose sum is σ = 34590892. Its totient is φ = 29649312.

The previous prime is 32120093. The next prime is 32120111. The reversal of 32120101 is 10102123.

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 9548100 + 22572001 = 3090^2 + 4751^2 .

It is a cyclic number.

It is not a de Polignac number, because 32120101 - 23 = 32120093 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 (32120111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235376 + ... + 1235401.

It is an arithmetic number, because the mean of its divisors is an integer number (8647723).

Almost surely, 232120101 is an apocalyptic number.

It is an amenable number.

32120101 is a deficient number, since it is larger than the sum of its proper divisors (2470791).

32120101 is a wasteful number, since it uses less digits than its factorization.

32120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470790.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 32120101 is about 5667.4598366464. The cubic root of 32120101 is about 317.8768988075.

Adding to 32120101 its reverse (10102123), we get a palindrome (42222224).

The spelling of 32120101 in words is "thirty-two million, one hundred twenty thousand, one hundred one".

Divisors: 1 13 2470777 32120101