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1301300240 = 24516266253
BaseRepresentation
bin100110110010000…
…0100010000010000
310100200121220100012
41031210010100100
510131113101430
6333043214052
744150604152
oct11544042020
93320556305
101301300240
11608606149
12303977328
131797a1a56
14c4b7cad2
157939a695
hex4d904410

1301300240 has 20 divisors (see below), whose sum is σ = 3025523244. Its totient is φ = 520520064.

The previous prime is 1301300227. The next prime is 1301300257. The reversal of 1301300240 is 420031031.

It can be written as a sum of positive squares in 2 ways, for example, as 622801936 + 678498304 = 24956^2 + 26048^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 8133047 + ... + 8133206.

Almost surely, 21301300240 is an apocalyptic number.

1301300240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301300240 is an abundant number, since it is smaller than the sum of its proper divisors (1724223004).

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

1301300240 is a wasteful number, since it uses less digits than its factorization.

1301300240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16266266 (or 16266260 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1301300240 is about 36073.5393328684. The cubic root of 1301300240 is about 1091.7566266081.

Adding to 1301300240 its reverse (420031031), we get a palindrome (1721331271).

The spelling of 1301300240 in words is "one billion, three hundred one million, three hundred thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 16266253 32532506 65065012 81331265 130130024 162662530 260260048 325325060 650650120 1301300240