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245135150420 = 22512256757521
BaseRepresentation
bin1110010001001100110…
…0011000110101010100
3212102201220000220002012
43210103030120311110
513004014044303140
6304340305003352
723465451253556
oct3442314306524
9772656026065
10245135150420
1194a63446806
123b613323558
131a168230184
14bc166914d6
15659abac265
hex3913318d54

245135150420 has 12 divisors (see below), whose sum is σ = 514783815924. Its totient is φ = 98054060160.

The previous prime is 245135150417. The next prime is 245135150431. The reversal of 245135150420 is 24051531542.

It can be written as a sum of positive squares in 2 ways, for example, as 90329100304 + 154806050116 = 300548^2 + 393454^2 .

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 3 ways as a sum of consecutive naturals, for example, 6128378741 + ... + 6128378780.

It is an arithmetic number, because the mean of its divisors is an integer number (42898651327).

Almost surely, 2245135150420 is an apocalyptic number.

245135150420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245135150420 is an abundant number, since it is smaller than the sum of its proper divisors (269648665504).

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

245135150420 is a wasteful number, since it uses less digits than its factorization.

245135150420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12256757530 (or 12256757528 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 245135150420 its reverse (24051531542), we get a palindrome (269186681962).

The spelling of 245135150420 in words is "two hundred forty-five billion, one hundred thirty-five million, one hundred fifty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 12256757521 24513515042 49027030084 61283787605 122567575210 245135150420