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11472980 = 22529131151
BaseRepresentation
bin101011110001…
…000001010100
3210120212222012
4223301001110
510414113410
61045523352
7166342631
oct53610124
923525865
1011472980
116526902
123a13558
1324b915c
141749188
151019605
hexaf1054

11472980 has 48 divisors (see below), whose sum is σ = 25280640. Its totient is φ = 4368000.

The previous prime is 11472973. The next prime is 11472983. The reversal of 11472980 is 8927411.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11472983) 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, 75905 + ... + 76055.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

Almost surely, 211472980 is an apocalyptic number.

11472980 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 11472980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12640320).

11472980 is an abundant number, since it is smaller than the sum of its proper divisors (13807660).

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

11472980 is a wasteful number, since it uses less digits than its factorization.

11472980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 11472980 is about 3387.1787670567. The cubic root of 11472980 is about 225.5409535208.

The spelling of 11472980 in words is "eleven million, four hundred seventy-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 131 145 151 262 290 302 524 580 604 655 755 1310 1510 2620 3020 3799 4379 7598 8758 15196 17516 18995 19781 21895 37990 39562 43790 75980 79124 87580 98905 197810 395620 573649 1147298 2294596 2868245 5736490 11472980