Search a number
-
+
1025973684 = 223228499269
BaseRepresentation
bin111101001001110…
…001110110110100
32122111112212022100
4331021301312310
54100122124214
6245450102100
734265426631
oct7511616664
92574485270
101025973684
1148715423a
1224771a930
13134732628
149a38d188
1560112309
hex3d271db4

1025973684 has 18 divisors (see below), whose sum is σ = 2593433570. Its totient is φ = 341991216.

The previous prime is 1025973677. The next prime is 1025973713. The reversal of 1025973684 is 4863795201.

1025973684 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 798627600 + 227346084 = 28260^2 + 15078^2 .

It is a tau number, because it is divible by the number of its divisors (18).

1025973684 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 14249599 + ... + 14249670.

It is a 2-persistent number, because it is pandigital, and so is 2⋅1025973684 = 2051947368, but 3⋅1025973684 = 3077921052 is not.

Almost surely, 21025973684 is an apocalyptic number.

It is an amenable number.

1025973684 is an abundant number, since it is smaller than the sum of its proper divisors (1567459886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025973684 is a wasteful number, since it uses less digits than its factorization.

1025973684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28499279 (or 28499274 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1025973684 is about 32030.8239669229. The cubic root of 1025973684 is about 1008.5839987940.

The spelling of 1025973684 in words is "one billion, twenty-five million, nine hundred seventy-three thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 28499269 56998538 85497807 113997076 170995614 256493421 341991228 512986842 1025973684