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11205916148 = 2274112917561
BaseRepresentation
bin10100110111110110…
…01011010111110100
31001220221220112002102
422123323023113310
5140422203304043
65051541401232
7544456500320
oct123373132764
931827815072
1011205916148
1148304a1729
122208a09218
1310977a371b
14784392980
15458bb66b8
hex29becb5f4

11205916148 has 48 divisors (see below), whose sum is σ = 22979284608. Its totient is φ = 4681152000.

The previous prime is 11205916147. The next prime is 11205916201. The reversal of 11205916148 is 84161950211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11205916147) 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, 1478288 + ... + 1485848.

It is an arithmetic number, because the mean of its divisors is an integer number (478735096).

Almost surely, 211205916148 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 11205916148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11489642304).

11205916148 is an abundant number, since it is smaller than the sum of its proper divisors (11773368460).

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

11205916148 is a wasteful number, since it uses less digits than its factorization.

11205916148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8904 (or 8902 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 38.

The spelling of 11205916148 in words is "eleven billion, two hundred five million, nine hundred sixteen thousand, one hundred forty-eight".

Divisors: 1 2 4 7 14 28 41 82 164 287 574 1148 1291 2582 5164 7561 9037 15122 18074 30244 36148 52927 52931 105854 105862 211708 211724 310001 370517 620002 741034 1240004 1482068 2170007 4340014 8680028 9761251 19522502 39045004 68328757 136657514 273315028 400211291 800422582 1600845164 2801479037 5602958074 11205916148