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11914830 = 233544129
BaseRepresentation
bin101101011100…
…111001001110
3211102100002000
4231130321032
511022233310
61103213130
7203163054
oct55347116
924370060
1011914830
1167a8874
123ba71a6
1326122c5
1418221d4
1510a54c0
hexb5ce4e

11914830 has 32 divisors (see below), whose sum is σ = 31773600. Its totient is φ = 3177216.

The previous prime is 11914823. The next prime is 11914831. The reversal of 11914830 is 3841911.

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

It is a junction number, because it is equal to n+sod(n) for n = 11914794 and 11914803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11914831) 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, 21795 + ... + 22334.

It is an arithmetic number, because the mean of its divisors is an integer number (992925).

Almost surely, 211914830 is an apocalyptic number.

11914830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11914830 is an abundant number, since it is smaller than the sum of its proper divisors (19858770).

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

11914830 is a wasteful number, since it uses less digits than its factorization.

11914830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44145 (or 44139 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 11914830 is about 3451.7864939767. The cubic root of 11914830 is about 228.3999213800.

The spelling of 11914830 in words is "eleven million, nine hundred fourteen thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 44129 88258 132387 220645 264774 397161 441290 661935 794322 1191483 1323870 1985805 2382966 3971610 5957415 11914830