[go: up one dir, main page]

Search a number
-
+
1025210012 = 221861137723
BaseRepresentation
bin111101000110110…
…111011010011100
32122110010001202012
4331012313122130
54044423210022
6245421450352
734256066321
oct7506673234
92573101665
101025210012
11486782502
122474109b8
13134525b58
149a230b48
1560010de2
hex3d1b769c

1025210012 has 12 divisors (see below), whose sum is σ = 1795094616. Its totient is φ = 512325840.

The previous prime is 1025210003. The next prime is 1025210033. The reversal of 1025210012 is 2100125201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61418 + ... + 76305.

It is an arithmetic number, because the mean of its divisors is an integer number (149591218).

Almost surely, 21025210012 is an apocalyptic number.

It is an amenable number.

1025210012 is a deficient number, since it is larger than the sum of its proper divisors (769884604).

1025210012 is a wasteful number, since it uses less digits than its factorization.

1025210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139588 (or 139586 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1025210012 is about 32018.9008555884. The cubic root of 1025210012 is about 1008.3336939522. Note that the first 3 decimals are identical.

Adding to 1025210012 its reverse (2100125201), we get a palindrome (3125335213).

The spelling of 1025210012 in words is "one billion, twenty-five million, two hundred ten thousand, twelve".

Divisors: 1 2 4 1861 3722 7444 137723 275446 550892 256302503 512605006 1025210012