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1306849372 = 221319247697
BaseRepresentation
bin100110111100100…
…1111000001011100
310101002001211022121
41031321033001130
510134023134442
6333402152324
744246015323
oct11571170134
93332054277
101306849372
11610756304
123057b26a4
1317a99576a
14c57c50ba
1579ae4967
hex4de4f05c

1306849372 has 12 divisors (see below), whose sum is σ = 2288729520. Its totient is φ = 652926656.

The previous prime is 1306849343. The next prime is 1306849399. The reversal of 1306849372 is 2739486031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118573 + ... + 129124.

It is an arithmetic number, because the mean of its divisors is an integer number (190727460).

Almost surely, 21306849372 is an apocalyptic number.

It is an amenable number.

1306849372 is a deficient number, since it is larger than the sum of its proper divisors (981880148).

1306849372 is a wasteful number, since it uses less digits than its factorization.

1306849372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249020 (or 249018 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 1306849372 is about 36150.3716716716. The cubic root of 1306849372 is about 1093.3062844868.

The spelling of 1306849372 in words is "one billion, three hundred six million, eight hundred forty-nine thousand, three hundred seventy-two".

Divisors: 1 2 4 1319 2638 5276 247697 495394 990788 326712343 653424686 1306849372