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32501401 = 57012
BaseRepresentation
bin111101111111…
…0111010011001
32021011020112121
41323332322121
531310021101
63120341241
7543154162
oct173767231
967136477
1032501401
1117389869
12aa74821
13696c6ca
144460769
152cc00a1
hex1efee99

32501401 has 3 divisors (see below), whose sum is σ = 32507103. Its totient is φ = 32495700.

The previous prime is 32501377. The next prime is 32501407. The reversal of 32501401 is 10410523.

The square root of 32501401 is 5701.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 27573001 + 4928400 = 5251^2 + 2220^2 .

It is not a de Polignac number, because 32501401 - 211 = 32499353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32501407) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2851 + ... + 8551.

It is an arithmetic number, because the mean of its divisors is an integer number (10835701).

Almost surely, 232501401 is an apocalyptic number.

32501401 is the 5701-st square number.

32501401 is the 2851-st centered octagonal number.

It is an amenable number.

32501401 is a deficient number, since it is larger than the sum of its proper divisors (5702).

32501401 is an frugal number, since it uses more digits than its factorization.

32501401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11402 (or 5701 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The cubic root of 32501401 is about 319.1298004610.

Multiplying 32501401 by its sum of digits (16), we get a square (520022416 = 228042).

Adding to 32501401 its reverse (10410523), we get a palindrome (42911924).

The spelling of 32501401 in words is "thirty-two million, five hundred one thousand, four hundred one".

Divisors: 1 5701 32501401