Search a number
-
+
1315974372 = 223268740813
BaseRepresentation
bin100111001110000…
…0010110011100100
310101201020102110120
41032130002303210
510143342134442
6334325521540
744416411656
oct11634026344
93351212416
101315974372
11615919029
123088732b0
1317c83bc7b
14c6abc6d6
157a7e84ec
hex4e702ce4

1315974372 has 24 divisors (see below), whose sum is σ = 3071824896. Its totient is φ = 438484128.

The previous prime is 1315974367. The next prime is 1315974433. The reversal of 1315974372 is 2734795131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11838 + ... + 52650.

It is an arithmetic number, because the mean of its divisors is an integer number (127992704).

Almost surely, 21315974372 is an apocalyptic number.

1315974372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1315974372 is an abundant number, since it is smaller than the sum of its proper divisors (1755850524).

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

1315974372 is a wasteful number, since it uses less digits than its factorization.

1315974372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43507 (or 43505 counting only the distinct ones).

The product of its digits is 158760, while the sum is 42.

The square root of 1315974372 is about 36276.3610633702. The cubic root of 1315974372 is about 1095.8450339889.

The spelling of 1315974372 in words is "one billion, three hundred fifteen million, nine hundred seventy-four thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 2687 5374 8061 10748 16122 32244 40813 81626 122439 163252 244878 489756 109664531 219329062 328993593 438658124 657987186 1315974372