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1361314816 = 21011532
BaseRepresentation
bin101000100100100…
…0000010000000000
310111212112221212021
41101021000100000
510241444033231
6343025411224
745506661601
oct12111002000
93455487767
101361314816
11639476a74
1231ba99b14
13189055534
14ccb21da8
157e7a2811
hex51240400

1361314816 has 33 divisors (see below), whose sum is σ = 2723662461. Its totient is φ = 680067072.

The previous prime is 1361314813. The next prime is 1361314837. The reversal of 1361314816 is 6184131631.

The square root of 1361314816 is 36896.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1075840000 + 285474816 = 32800^2 + 16896^2 .

It is a super-2 number, since 2×13613148162 = 3706356056522227712, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361314813) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1180096 + ... + 1181248.

Almost surely, 21361314816 is an apocalyptic number.

1361314816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1361314816 is the 36896-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1361314816

1361314816 is an abundant number, since it is smaller than the sum of its proper divisors (1362347645).

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

1361314816 is an frugal number, since it uses more digits than its factorization.

1361314816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326 (or 1155 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The cubic root of 1361314816 is about 1108.2885771036.

The spelling of 1361314816 in words is "one billion, three hundred sixty-one million, three hundred fourteen thousand, eight hundred sixteen".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 1153 2306 4612 9224 18448 36896 73792 147584 295168 590336 1180672 1329409 2658818 5317636 10635272 21270544 42541088 85082176 170164352 340328704 680657408 1361314816