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11801952 = 253243953
BaseRepresentation
bin101101000001…
…010101100000
3211012121020100
4231001111200
511010130302
61100542400
7202213011
oct55012540
924177210
1011801952
116730a88
123b51a00
1325a2b06
1417d3008
151081d1c
hexb41560

11801952 has 72 divisors (see below), whose sum is σ = 34378344. Its totient is φ = 3838464.

The previous prime is 11801941. The next prime is 11801969. The reversal of 11801952 is 25910811.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11908 + ... + 12860.

It is an arithmetic number, because the mean of its divisors is an integer number (477477).

Almost surely, 211801952 is an apocalyptic number.

11801952 is a gapful number since it is divisible by the number (12) 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 11801952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17189172).

11801952 is an abundant number, since it is smaller than the sum of its proper divisors (22576392).

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

11801952 is a wasteful number, since it uses less digits than its factorization.

11801952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 1001 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 11801952 is about 3435.3969202990. The cubic root of 11801952 is about 227.6763644696.

The spelling of 11801952 in words is "eleven million, eight hundred one thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 43 48 72 86 96 129 144 172 258 288 344 387 516 688 774 953 1032 1376 1548 1906 2064 2859 3096 3812 4128 5718 6192 7624 8577 11436 12384 15248 17154 22872 30496 34308 40979 45744 68616 81958 91488 122937 137232 163916 245874 274464 327832 368811 491748 655664 737622 983496 1311328 1475244 1966992 2950488 3933984 5900976 11801952