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1316522260 = 225312123423
BaseRepresentation
bin100111001111000…
…1000100100010100
310101202021021000201
41032132020210110
510144012203020
6334345350244
744424153214
oct11636104424
93352237021
101316522260
11616162729
12308a98384
1317c9a1471
14c6bc2244
157a8a5a0a
hex4e788914

1316522260 has 24 divisors (see below), whose sum is σ = 2853881856. Its totient is φ = 509621280.

The previous prime is 1316522243. The next prime is 1316522297. The reversal of 1316522260 is 622256131.

It is a super-2 number, since 2×13165222602 = 3466461722151015200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061092 + ... + 1062331.

It is an arithmetic number, because the mean of its divisors is an integer number (118911744).

Almost surely, 21316522260 is an apocalyptic number.

1316522260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1316522260 is an abundant number, since it is smaller than the sum of its proper divisors (1537359596).

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

1316522260 is a wasteful number, since it uses less digits than its factorization.

1316522260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123463 (or 2123461 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1316522260 is about 36283.9118618707. The cubic root of 1316522260 is about 1095.9970929381.

Adding to 1316522260 its reverse (622256131), we get a palindrome (1938778391).

The spelling of 1316522260 in words is "one billion, three hundred sixteen million, five hundred twenty-two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 2123423 4246846 8493692 10617115 21234230 42468460 65826113 131652226 263304452 329130565 658261130 1316522260