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1310584420 = 225497313177
BaseRepresentation
bin100111000011101…
…1110111001100100
310101100002120211201
41032013132321210
510141002200140
6334014212244
744322532555
oct11607367144
93340076751
101310584420
11612877522
12306ab4084
1317b6a2852
14c60b832c
157a0d149a
hex4e1dee64

1310584420 has 24 divisors (see below), whose sum is σ = 2752989624. Its totient is φ = 524088576.

The previous prime is 1310584397. The next prime is 1310584433. The reversal of 1310584420 is 244850131.

It can be written as a sum of positive squares in 4 ways, for example, as 269747776 + 1040836644 = 16424^2 + 32262^2 .

It is a super-4 number, since 4×13105844204 (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

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 7 ways as a sum of consecutive naturals, for example, 92872 + ... + 106048.

It is an arithmetic number, because the mean of its divisors is an integer number (114707901).

Almost surely, 21310584420 is an apocalyptic number.

1310584420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310584420 is an abundant number, since it is smaller than the sum of its proper divisors (1442405204).

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

1310584420 is a wasteful number, since it uses less digits than its factorization.

1310584420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18159 (or 18157 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1310584420 is about 36201.9946964252. The cubic root of 1310584420 is about 1094.3468704348.

The spelling of 1310584420 in words is "one billion, three hundred ten million, five hundred eighty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 4973 9946 13177 19892 24865 26354 49730 52708 65885 99460 131770 263540 65529221 131058442 262116884 327646105 655292210 1310584420