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11472880 = 245612351
BaseRepresentation
bin101011110000…
…111111110000
3210120212211111
4223300333300
510414113010
61045523104
7166342426
oct53607760
923525744
1011472880
116526821
123a13494
1324b90b3
141749116
15101958a
hexaf0ff0

11472880 has 40 divisors (see below), whose sum is σ = 27123264. Its totient is φ = 4512000.

The previous prime is 11472871. The next prime is 11472887. The reversal of 11472880 is 8827411.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11472887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3705 + ... + 6055.

Almost surely, 211472880 is an apocalyptic number.

11472880 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 11472880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13561632).

11472880 is an abundant number, since it is smaller than the sum of its proper divisors (15650384).

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

11472880 is a wasteful number, since it uses less digits than its factorization.

11472880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 11472880 is about 3387.1640054771. The cubic root of 11472880 is about 225.5402982374.

The spelling of 11472880 in words is "eleven million, four hundred seventy-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 61 80 122 244 305 488 610 976 1220 2351 2440 4702 4880 9404 11755 18808 23510 37616 47020 94040 143411 188080 286822 573644 717055 1147288 1434110 2294576 2868220 5736440 11472880