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1386969241 = 71977391361
BaseRepresentation
bin101001010101011…
…0111100010011001
310120122211100010011
41102222313202121
510320031003431
6345343321521
746241021050
oct12252674231
93518740104
101386969241
116519a9579
123285b02a1
13191468578
14d22bd397
1581b6dcb1
hex52ab7899

1386969241 has 16 divisors (see below), whose sum is σ = 1596481920. Its totient is φ = 1180327680.

The previous prime is 1386969179. The next prime is 1386969247. The reversal of 1386969241 is 1429696831.

It is a happy number.

It is not a de Polignac number, because 1386969241 - 27 = 1386969113 is a prime.

It is a Duffinian number.

Its product of digits (559872) is a multiple of the sum of its prime divisors (2304).

It is not an unprimeable number, because it can be changed into a prime (1386969247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018401 + ... + 1019761.

It is an arithmetic number, because the mean of its divisors is an integer number (99780120).

Almost surely, 21386969241 is an apocalyptic number.

It is an amenable number.

1386969241 is a deficient number, since it is larger than the sum of its proper divisors (209512679).

1386969241 is a wasteful number, since it uses less digits than its factorization.

1386969241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304.

The product of its digits is 559872, while the sum is 49.

The square root of 1386969241 is about 37242.0359405874. The cubic root of 1386969241 is about 1115.2073162468.

The spelling of 1386969241 in words is "one billion, three hundred eighty-six million, nine hundred sixty-nine thousand, two hundred forty-one".

Divisors: 1 7 197 739 1361 1379 5173 9527 145583 268117 1005779 1019081 1876819 7040453 198138463 1386969241