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11970720 = 2533517163
BaseRepresentation
bin101101101010…
…100010100000
3211112011202000
4231222202200
511031030340
61104324000
7203515026
oct55524240
924464660
1011970720
116836863
124013600
132631888
141838716
1510b6d30
hexb6a8a0

11970720 has 192 divisors, whose sum is σ = 44634240. Its totient is φ = 2985984.

The previous prime is 11970719. The next prime is 11970757. The reversal of 11970720 is 2707911.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73359 + ... + 73521.

It is an arithmetic number, because the mean of its divisors is an integer number (232470).

Almost surely, 211970720 is an apocalyptic number.

11970720 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 11970720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22317120).

11970720 is an abundant number, since it is smaller than the sum of its proper divisors (32663520).

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

11970720 is a wasteful number, since it uses less digits than its factorization.

11970720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 11970720 is about 3459.8728300329. The cubic root of 11970720 is about 228.7564900067.

The spelling of 11970720 in words is "eleven million, nine hundred seventy thousand, seven hundred twenty".