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1025530101 = 32113947789
BaseRepresentation
bin111101001000000…
…101100011110101
32122110201022211100
4331020011203311
54100013430401
6245432400313
734261601451
oct7510054365
92573638740
101025530101
11486980a42
12247546099
1313460875b
149a2b5661
1560075b86
hex3d2058f5

1025530101 has 6 divisors (see below), whose sum is σ = 1481321270. Its totient is φ = 683686728.

The previous prime is 1025530081. The next prime is 1025530157. The reversal of 1025530101 is 1010355201.

1025530101 is a `hidden beast` number, since 10 + 2 + 553 + 0 + 101 = 666.

1025530101 is digitally balanced in base 2, 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., 887444100 + 138086001 = 29790^2 + 11751^2 .

It is not a de Polignac number, because 1025530101 - 25 = 1025530069 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 (1025530501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56973886 + ... + 56973903.

Almost surely, 21025530101 is an apocalyptic number.

It is an amenable number.

1025530101 is a deficient number, since it is larger than the sum of its proper divisors (455791169).

1025530101 is a wasteful number, since it uses less digits than its factorization.

1025530101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113947795 (or 113947792 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 1025530101 is about 32023.8989037875. The cubic root of 1025530101 is about 1008.4386230027.

Adding to 1025530101 its reverse (1010355201), we get a palindrome (2035885302).

The spelling of 1025530101 in words is "one billion, twenty-five million, five hundred thirty thousand, one hundred one".

Divisors: 1 3 9 113947789 341843367 1025530101