Search a number
-
+
31101268 = 2211706847
BaseRepresentation
bin111011010100…
…1000101010100
32011112002220211
41312221011110
530430220033
63030335204
7525233152
oct166510524
964462824
1031101268
1116612930
12a4ba504
13659c323
1441b83d2
152ae52cd
hex1da9154

31101268 has 12 divisors (see below), whose sum is σ = 59375232. Its totient is φ = 14136920.

The previous prime is 31101251. The next prime is 31101269. The reversal of 31101268 is 86210113.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353380 + ... + 353467.

It is an arithmetic number, because the mean of its divisors is an integer number (4947936).

Almost surely, 231101268 is an apocalyptic number.

It is an amenable number.

31101268 is a deficient number, since it is larger than the sum of its proper divisors (28273964).

31101268 is a wasteful number, since it uses less digits than its factorization.

31101268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706862 (or 706860 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 31101268 is about 5576.8510828244. The cubic root of 31101268 is about 314.4797593895.

The spelling of 31101268 in words is "thirty-one million, one hundred one thousand, two hundred sixty-eight".

Divisors: 1 2 4 11 22 44 706847 1413694 2827388 7775317 15550634 31101268