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1380466485 = 325371018209
BaseRepresentation
bin101001001001000…
…0011111100110101
310120012120222000100
41102102003330311
510311344411420
6344552104313
746131525426
oct12222037465
93505528010
101380466485
116492679a2
12326395099
1318cccc798
14d14a964d
15812d7190
hex52483f35

1380466485 has 48 divisors (see below), whose sum is σ = 2482112880. Its totient is φ = 709171200.

The previous prime is 1380466481. The next prime is 1380466499. The reversal of 1380466485 is 5846640831.

It can be written as a sum of positive squares in 8 ways, for example, as 49238289 + 1331228196 = 7017^2 + 36486^2 .

It is not a de Polignac number, because 1380466485 - 22 = 1380466481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1380466485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380466481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 164061 + ... + 172269.

It is an arithmetic number, because the mean of its divisors is an integer number (51710685).

Almost surely, 21380466485 is an apocalyptic number.

1380466485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1380466485 is a deficient number, since it is larger than the sum of its proper divisors (1101646395).

1380466485 is a wasteful number, since it uses less digits than its factorization.

1380466485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8358 (or 8355 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 1380466485 is about 37154.6293885432. The cubic root of 1380466485 is about 1113.4617153776.

The spelling of 1380466485 in words is "one billion, three hundred eighty million, four hundred sixty-six thousand, four hundred eighty-five".

Divisors: 1 3 5 9 15 37 45 101 111 185 303 333 505 555 909 1515 1665 3737 4545 8209 11211 18685 24627 33633 41045 56055 73881 123135 168165 303733 369405 829109 911199 1518665 2487327 2733597 4145545 4555995 7461981 12436635 13667985 30677033 37309905 92031099 153385165 276093297 460155495 1380466485