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31053456 = 243572163
BaseRepresentation
bin111011001110…
…1011010010000
32011102200100000
41312131122100
530422202311
63025330000
7524643600
oct166353220
964380300
1031053456
111658aa15
12a496900
136583635
1441a4c00
152ad6056
hex1d9d690

31053456 has 180 divisors, whose sum is σ = 105482832. Its totient is φ = 8817984.

The previous prime is 31053443. The next prime is 31053479. The reversal of 31053456 is 65435013.

31053456 is a `hidden beast` number, since 310 + 5 + 345 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 190431 + ... + 190593.

Almost surely, 231053456 is an apocalyptic number.

31053456 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31053456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52741416).

31053456 is an abundant number, since it is smaller than the sum of its proper divisors (74429376).

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

31053456 is a wasteful number, since it uses less digits than its factorization.

31053456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 31053456 is about 5572.5627856490. The cubic root of 31053456 is about 314.3185267591.

Adding to 31053456 its reverse (65435013), we get a palindrome (96488469).

It can be divided in two parts, 3105 and 3456, that added together give a 8-th power (6561 = 38).

The spelling of 31053456 in words is "thirty-one million, fifty-three thousand, four hundred fifty-six".