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2531472 = 243232293
BaseRepresentation
bin1001101010000010010000
311202121112020
421222002100
51122001342
6130131440
730342246
oct11520220
94677466
102531472
111479a29
12a20b80
136a8318
1449c796
153500ec
hex26a090

2531472 has 40 divisors (see below), whose sum is σ = 6826944. Its totient is φ = 806784.

The previous prime is 2531471. The next prime is 2531483. The reversal of 2531472 is 2741352.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2531471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43 + ... + 2250.

22531472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2531472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3413472).

2531472 is an abundant number, since it is smaller than the sum of its proper divisors (4295472).

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

2531472 is a wasteful number, since it uses less digits than its factorization.

2531472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327 (or 2321 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 2531472 is about 1591.0600240092. The cubic root of 2531472 is about 136.2880285511.

It can be divided in two parts, 2531 and 472, that added together give a palindrome (3003).

The spelling of 2531472 in words is "two million, five hundred thirty-one thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 23 24 46 48 69 92 138 184 276 368 552 1104 2293 4586 6879 9172 13758 18344 27516 36688 52739 55032 105478 110064 158217 210956 316434 421912 632868 843824 1265736 2531472