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13972000 = 25537499
BaseRepresentation
bin110101010011…
…001000100000
3222021211222111
4311103020200
512034101000
61215245104
7226521460
oct65231040
928254874
1013972000
117983409
124819794
132b82773
141bd9ba0
15135ecba
hexd53220

13972000 has 96 divisors (see below), whose sum is σ = 39312000. Its totient is φ = 4780800.

The previous prime is 13971959. The next prime is 13972003. The reversal of 13972000 is 27931.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13972003) 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, 27751 + ... + 28249.

It is an arithmetic number, because the mean of its divisors is an integer number (409500).

Almost surely, 213972000 is an apocalyptic number.

13972000 is a gapful number since it is divisible by the number (10) 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 13972000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19656000).

13972000 is an abundant number, since it is smaller than the sum of its proper divisors (25340000).

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

13972000 is an equidigital number, since it uses as much as digits as its factorization.

13972000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 13972000 is about 3737.9138566853. The cubic root of 13972000 is about 240.8534430300.

Adding to 13972000 its reverse (27931), we get a palindrome (13999931).

The spelling of 13972000 in words is "thirteen million, nine hundred seventy-two thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 125 140 160 175 200 224 250 280 350 400 499 500 560 700 800 875 998 1000 1120 1400 1750 1996 2000 2495 2800 3493 3500 3992 4000 4990 5600 6986 7000 7984 9980 12475 13972 14000 15968 17465 19960 24950 27944 28000 34930 39920 49900 55888 62375 69860 79840 87325 99800 111776 124750 139720 174650 199600 249500 279440 349300 399200 436625 499000 558880 698600 873250 998000 1397200 1746500 1996000 2794400 3493000 6986000 13972000