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1380025344 = 2103449227
BaseRepresentation
bin101001001000001…
…1000010000000000
310120011202112212210
41102100120100000
510311241302334
6344534422120
746125010335
oct12220302000
93504675783
101380025344
11648a96515
12326201940
1318cba6a59
14d13d298c
158124b5e9
hex52418400

1380025344 has 44 divisors (see below), whose sum is σ = 3678278864. Its totient is φ = 460007424.

The previous prime is 1380025343. The next prime is 1380025373. The reversal of 1380025344 is 4435200831.

It is not an unprimeable number, because it can be changed into a prime (1380025343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221542 + ... + 227685.

Almost surely, 21380025344 is an apocalyptic number.

It is an amenable number.

1380025344 is an abundant number, since it is smaller than the sum of its proper divisors (2298253520).

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

1380025344 is an equidigital number, since it uses as much as digits as its factorization.

1380025344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449250 (or 449232 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1380025344 is about 37148.6923592204. The cubic root of 1380025344 is about 1113.3430970335.

The spelling of 1380025344 in words is "one billion, three hundred eighty million, twenty-five thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1024 1536 3072 449227 898454 1347681 1796908 2695362 3593816 5390724 7187632 10781448 14375264 21562896 28750528 43125792 57501056 86251584 115002112 172503168 230004224 345006336 460008448 690012672 1380025344