Search a number
-
+
1025214224242 = 213157251154881
BaseRepresentation
bin11101110101100111000…
…01111001011101110010
310122000020221102201201011
432322303201321131302
5113244114320133432
62102551002501134
7134032523056615
oct16726341713562
93560227381634
101025214224242
1136587777a84a
1214683a2047aa
13758a5cc9860
143789903617c
151ba05152847
hexeeb3879772

1025214224242 has 16 divisors (see below), whose sum is σ = 1666663796952. Its totient is φ = 470161935360.

The previous prime is 1025214224227. The next prime is 1025214224267. The reversal of 1025214224242 is 2424224125201.

It can be written as a sum of positive squares in 4 ways, for example, as 261130198081 + 764084026161 = 511009^2 + 874119^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125573359 + ... + 125581522.

Almost surely, 21025214224242 is an apocalyptic number.

1025214224242 is a deficient number, since it is larger than the sum of its proper divisors (641449572710).

1025214224242 is a wasteful number, since it uses less digits than its factorization.

1025214224242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251155053.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 1025214224242 its reverse (2424224125201), we get a palindrome (3449438349443).

The spelling of 1025214224242 in words is "one trillion, twenty-five billion, two hundred fourteen million, two hundred twenty-four thousand, two hundred forty-two".

Divisors: 1 2 13 26 157 314 2041 4082 251154881 502309762 3265013453 6530026906 39431316317 78862632634 512607112121 1025214224242