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1364331380 = 225197346277
BaseRepresentation
bin101000101010010…
…0000101101110100
310112002020012210212
41101110200231310
510243232101010
6343214204552
745544424336
oct12124405564
93462205725
101364331380
116401473a5
12320ab3758
13189870599
14cd2a9456
157eb9b505
hex51520b74

1364331380 has 24 divisors (see below), whose sum is σ = 2879647848. Its totient is φ = 542960768.

The previous prime is 1364331349. The next prime is 1364331403. The reversal of 1364331380 is 831334631.

It can be written as a sum of positive squares in 4 ways, for example, as 645769744 + 718561636 = 25412^2 + 26806^2 .

It is a super-2 number, since 2×13643313802 = 3722800228905408800, which contains 22 as substring.

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, 169199 + ... + 177078.

It is an arithmetic number, because the mean of its divisors is an integer number (119985327).

Almost surely, 21364331380 is an apocalyptic number.

1364331380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1364331380 is an abundant number, since it is smaller than the sum of its proper divisors (1515316468).

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

1364331380 is a wasteful number, since it uses less digits than its factorization.

1364331380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346483 (or 346481 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1364331380 is about 36936.8566610642. The cubic root of 1364331380 is about 1109.1065992544.

The spelling of 1364331380 in words is "one billion, three hundred sixty-four million, three hundred thirty-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 197 394 788 985 1970 3940 346277 692554 1385108 1731385 3462770 6925540 68216569 136433138 272866276 341082845 682165690 1364331380