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31114474 = 215557237
BaseRepresentation
bin111011010110…
…0010011101010
32011112210000221
41312230103222
530431130344
63030520254
7525316516
oct166542352
964483027
1031114474
1116621846
12a50608a
1365a5341
1441bd146
152ae9184
hex1dac4ea

31114474 has 4 divisors (see below), whose sum is σ = 46671714. Its totient is φ = 15557236.

The previous prime is 31114451. The next prime is 31114487. The reversal of 31114474 is 47441113.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22024249 + 9090225 = 4693^2 + 3015^2 .

It is a super-2 number, since 2×311144742 = 1936220984593352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7778617 + ... + 7778620.

Almost surely, 231114474 is an apocalyptic number.

31114474 is a deficient number, since it is larger than the sum of its proper divisors (15557240).

31114474 is a wasteful number, since it uses less digits than its factorization.

31114474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15557239.

The product of its digits is 1344, while the sum is 25.

The square root of 31114474 is about 5578.0349586570. The cubic root of 31114474 is about 314.5242638133.

Adding to 31114474 its reverse (47441113), we get a palindrome (78555587).

The spelling of 31114474 in words is "thirty-one million, one hundred fourteen thousand, four hundred seventy-four".

Divisors: 1 2 15557237 31114474