Search a number
-
+
1025452401 = 31923782191
BaseRepresentation
bin111101000111110…
…010100101110001
32122110120101020120
4331013302211301
54100003434101
6245431000453
734261126101
oct7507624561
92573511216
101025452401
11486928626
12247509129
131345ac28c
149a295201
156005cb36
hex3d1f2971

1025452401 has 16 divisors (see below), whose sum is σ = 1501808640. Its totient is φ = 619494480.

The previous prime is 1025452399. The next prime is 1025452459. The reversal of 1025452401 is 1042545201.

It is not a de Polignac number, because 1025452401 - 21 = 1025452399 is a prime.

It is a super-3 number, since 3×10254524013 (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1025452471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389785 + ... + 392406.

It is an arithmetic number, because the mean of its divisors is an integer number (93863040).

Almost surely, 21025452401 is an apocalyptic number.

It is an amenable number.

1025452401 is a deficient number, since it is larger than the sum of its proper divisors (476356239).

1025452401 is a wasteful number, since it uses less digits than its factorization.

1025452401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782236.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1025452401 is about 32022.6857243424. The cubic root of 1025452401 is about 1008.4131540087.

Adding to 1025452401 its reverse (1042545201), we get a palindrome (2067997602).

The spelling of 1025452401 in words is "one billion, twenty-five million, four hundred fifty-two thousand, four hundred one".

Divisors: 1 3 19 23 57 69 437 1311 782191 2346573 14861629 17990393 44584887 53971179 341817467 1025452401