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11980884 = 2232383523
BaseRepresentation
bin101101101101…
…000001010100
3211112200200110
4231231001110
511031342014
61104443020
7203556456
oct55550124
924480613
1011980884
116843463
124019470
1326363a6
14183c2d6
1510b9d59
hexb6d054

11980884 has 48 divisors (see below), whose sum is σ = 29578752. Its totient is φ = 3766752.

The previous prime is 11980879. The next prime is 11980901. The reversal of 11980884 is 48808911.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22647 + ... + 23169.

It is an arithmetic number, because the mean of its divisors is an integer number (616224).

Almost surely, 211980884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11980884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14789376).

11980884 is an abundant number, since it is smaller than the sum of its proper divisors (17597868).

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

11980884 is a wasteful number, since it uses less digits than its factorization.

11980884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 11980884 is about 3461.3413584910. The cubic root of 11980884 is about 228.8212152480.

It can be divided in two parts, 119 and 80884, that added together give a triangular number (81003 = T402).

The spelling of 11980884 in words is "eleven million, nine hundred eighty thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 23 46 69 83 92 138 166 249 276 332 498 523 996 1046 1569 1909 2092 3138 3818 5727 6276 7636 11454 12029 22908 24058 36087 43409 48116 72174 86818 130227 144348 173636 260454 520908 998407 1996814 2995221 3993628 5990442 11980884