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BaseRepresentation
bin101010101101…
…110000000000
3210001220000000
4222231300000
510331304230
61040000000
7164114412
oct52556000
923056000
1011197440
116358891
123900000
132420907
1416b69b2
15eb2b60

11197440 has 176 divisors, whose sum is σ = 40284960. Its totient is φ = 2985984.

The previous prime is 11197427. The next prime is 11197453. The reversal of 11197440 is 4479111.

It is a Jordan-Polya number, since it can be written as 6! ⋅ (3!)5 ⋅ 2!.

It is an interprime number because it is at equal distance from previous prime (11197427) and next prime (11197453).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2239486 + ... + 2239490.

Almost surely, 211197440 is an apocalyptic number.

11197440 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 11197440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20142480).

11197440 is an abundant number, since it is smaller than the sum of its proper divisors (29087520).

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

11197440 is an frugal number, since it uses more digits than its factorization.

11197440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 11197440 is about 3346.2576111232. The cubic root of 11197440 is about 223.7207404287.

The spelling of 11197440 in words is "eleven million, one hundred ninety-seven thousand, four hundred forty".