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1379965741 = 71141437113
BaseRepresentation
bin101001001000000…
…1001101100101101
310120011122112010021
41102100021230231
510311232400431
6344533242141
746124341510
oct12220115455
93504575107
101379965741
11648a55760
12326193351
1318cb8589b
14d13b8d77
1581238b11
hex52409b2d

1379965741 has 16 divisors (see below), whose sum is σ = 1762443648. Its totient is φ = 1049068800.

The previous prime is 1379965739. The next prime is 1379965777. The reversal of 1379965741 is 1475699731.

It is a cyclic number.

It is not a de Polignac number, because 1379965741 - 21 = 1379965739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379965721) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 215400 + ... + 221713.

It is an arithmetic number, because the mean of its divisors is an integer number (110152728).

Almost surely, 21379965741 is an apocalyptic number.

1379965741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1379965741 is a deficient number, since it is larger than the sum of its proper divisors (382477907).

1379965741 is a wasteful number, since it uses less digits than its factorization.

1379965741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437172.

The product of its digits is 1428840, while the sum is 52.

The square root of 1379965741 is about 37147.8901285120. The cubic root of 1379965741 is about 1113.3270684525.

The spelling of 1379965741 in words is "one billion, three hundred seventy-nine million, nine hundred sixty-five thousand, seven hundred forty-one".

Divisors: 1 7 11 41 77 287 451 3157 437113 3059791 4808243 17921633 33657701 125451431 197137963 1379965741