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11915330 = 257224317
BaseRepresentation
bin101101011101…
…000001000010
3211102100202112
4231131001002
511022242310
61103215322
7203164400
oct55350102
924370675
1011915330
1167a9189
123ba7542
1326125bb
141822470
1510a5705
hexb5d042

11915330 has 24 divisors (see below), whose sum is σ = 24950268. Its totient is φ = 4085088.

The previous prime is 11915329. The next prime is 11915339. The reversal of 11915330 is 3351911.

It can be written as a sum of positive squares in 2 ways, for example, as 11909401 + 5929 = 3451^2 + 77^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11915296 and 11915305.

It is not an unprimeable number, because it can be changed into a prime (11915339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11669 + ... + 12648.

Almost surely, 211915330 is an apocalyptic number.

11915330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11915330 is an abundant number, since it is smaller than the sum of its proper divisors (13034938).

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

11915330 is a wasteful number, since it uses less digits than its factorization.

11915330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24338 (or 24331 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 11915330 is about 3451.8589194809. The cubic root of 11915330 is about 228.4031162322.

The spelling of 11915330 in words is "eleven million, nine hundred fifteen thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 24317 48634 121585 170219 243170 340438 851095 1191533 1702190 2383066 5957665 11915330