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11870380 = 225593519
BaseRepresentation
bin101101010010…
…000010101100
3211100002002201
4231102002230
511014323010
61102231244
7202616344
oct55220254
924302081
1011870380
116778435
123b85524
1325c7cc2
14180dd24
15109723a
hexb520ac

11870380 has 12 divisors (see below), whose sum is σ = 24927840. Its totient is φ = 4748144.

The previous prime is 11870371. The next prime is 11870381. The reversal of 11870380 is 8307811.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11870381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296740 + ... + 296779.

It is an arithmetic number, because the mean of its divisors is an integer number (2077320).

Almost surely, 211870380 is an apocalyptic number.

11870380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11870380 is an abundant number, since it is smaller than the sum of its proper divisors (13057460).

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

11870380 is a wasteful number, since it uses less digits than its factorization.

11870380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593528 (or 593526 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 11870380 is about 3445.3417827554. The cubic root of 11870380 is about 228.1155411103.

The spelling of 11870380 in words is "eleven million, eight hundred seventy thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 593519 1187038 2374076 2967595 5935190 11870380