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11840880 = 2435103479
BaseRepresentation
bin101101001010…
…110101110000
3211021120122010
4231022311300
511012402010
61101442520
7202434342
oct55126560
924246563
1011840880
116758257
123b70440
1325b774c
141803292
15108d620
hexb4ad70

11840880 has 80 divisors (see below), whose sum is σ = 37140480. Its totient is φ = 3120384.

The previous prime is 11840861. The next prime is 11840911. The reversal of 11840880 is 8804811.

11840880 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 24481 + ... + 24959.

It is an arithmetic number, because the mean of its divisors is an integer number (464256).

Almost surely, 211840880 is an apocalyptic number.

11840880 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 11840880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18570240).

11840880 is an abundant number, since it is smaller than the sum of its proper divisors (25299600).

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

11840880 is a wasteful number, since it uses less digits than its factorization.

11840880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 11840880 is about 3441.0579768437. The cubic root of 11840880 is about 227.9264151580.

It can be divided in two parts, 11840 and 880, that added together give a triangular number (12720 = T159).

The spelling of 11840880 in words is "eleven million, eight hundred forty thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 103 120 206 240 309 412 479 515 618 824 958 1030 1236 1437 1545 1648 1916 2060 2395 2472 2874 3090 3832 4120 4790 4944 5748 6180 7185 7664 8240 9580 11496 12360 14370 19160 22992 24720 28740 38320 49337 57480 98674 114960 148011 197348 246685 296022 394696 493370 592044 740055 789392 986740 1184088 1480110 1973480 2368176 2960220 3946960 5920440 11840880