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245472 = 2532557
BaseRepresentation
bin111011111011100000
3110110201120
4323323200
530323342
65132240
72041443
oct737340
9413646
10245472
11158477
12ba080
1387966
146565a
154caec
hex3bee0

245472 has 24 divisors (see below), whose sum is σ = 644616. Its totient is φ = 81792.

The previous prime is 245471. The next prime is 245473. The reversal of 245472 is 274542.

It is an interprime number because it is at equal distance from previous prime (245471) and next prime (245473).

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 245472.

It is not an unprimeable number, because it can be changed into a prime (245471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (26859).

2245472 is an apocalyptic number.

It is an amenable number.

245472 is an abundant number, since it is smaller than the sum of its proper divisors (399144).

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

245472 is a wasteful number, since it uses less digits than its factorization.

245472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570 (or 2562 counting only the distinct ones).

The product of its digits is 2240, while the sum is 24.

The square root of 245472 is about 495.4513094140. The cubic root of 245472 is about 62.6134047719.

It can be divided in two parts, 24547 and 2, that multiplied together give a palindrome (49094).

The spelling of 245472 in words is "two hundred forty-five thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 2557 5114 7671 10228 15342 20456 30684 40912 61368 81824 122736 245472