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24972000 = 253532081
BaseRepresentation
bin101111101000…
…0101011100000
31201222201010220
41133100223200
522343101000
62251123040
7422154444
oct137205340
951881126
1024972000
1113106919
128443480
135234541
143460824
1522d41a0
hex17d0ae0

24972000 has 96 divisors (see below), whose sum is σ = 81847584. Its totient is φ = 6656000.

The previous prime is 24971959. The next prime is 24972001. The reversal of 24972000 is 27942.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24972001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10960 + ... + 13040.

It is an arithmetic number, because the mean of its divisors is an integer number (852579).

Almost surely, 224972000 is an apocalyptic number.

24972000 is a gapful number since it is divisible by the number (20) 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 24972000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40923792).

24972000 is an abundant number, since it is smaller than the sum of its proper divisors (56875584).

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

24972000 is a wasteful number, since it uses less digits than its factorization.

24972000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109 (or 2091 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 24972000 is about 4997.1992155607. The cubic root of 24972000 is about 292.2925697127.

Adding to 24972000 its reverse (27942), we get a palindrome (24999942).

The spelling of 24972000 in words is "twenty-four million, nine hundred seventy-two thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 125 150 160 200 240 250 300 375 400 480 500 600 750 800 1000 1200 1500 2000 2081 2400 3000 4000 4162 6000 6243 8324 10405 12000 12486 16648 20810 24972 31215 33296 41620 49944 52025 62430 66592 83240 99888 104050 124860 156075 166480 199776 208100 249720 260125 312150 332960 416200 499440 520250 624300 780375 832400 998880 1040500 1248600 1560750 1664800 2081000 2497200 3121500 4162000 4994400 6243000 8324000 12486000 24972000