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25242448 = 2472112927
BaseRepresentation
bin110000001001…
…0101101010000
31202111110010111
41200102231100
522430224243
62301011104
7424362100
oct140225520
952443114
1025242448
1113281030
128553a94
1352ca67a
1434d1200
15233939d
hex1812b50

25242448 has 60 divisors (see below), whose sum is σ = 62085312. Its totient is φ = 9831360.

The previous prime is 25242443. The next prime is 25242449. The reversal of 25242448 is 84424252.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25242443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7161 + ... + 10087.

Almost surely, 225242448 is an apocalyptic number.

25242448 is a gapful number since it is divisible by the number (28) 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 25242448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31042656).

25242448 is an abundant number, since it is smaller than the sum of its proper divisors (36842864).

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

25242448 is a wasteful number, since it uses less digits than its factorization.

25242448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960 (or 2947 counting only the distinct ones).

The product of its digits is 20480, while the sum is 31.

The square root of 25242448 is about 5024.1863022782. The cubic root of 25242448 is about 293.3439642612.

It can be divided in two parts, 2524244 and 8, that added together give a palindrome (2524252).

The spelling of 25242448 in words is "twenty-five million, two hundred forty-two thousand, four hundred forty-eight".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 49 56 77 88 98 112 154 176 196 308 392 539 616 784 1078 1232 2156 2927 4312 5854 8624 11708 20489 23416 32197 40978 46832 64394 81956 128788 143423 163912 225379 257576 286846 327824 450758 515152 573692 901516 1147384 1577653 1803032 2294768 3155306 3606064 6310612 12621224 25242448