Search a number
-
+
10931072 = 27234779
BaseRepresentation
bin101001101100…
…101110000000
3202120100121112
4221230232000
510244243242
61030142452
7161625005
oct51545600
922510545
1010931072
116196749
1237b1a28
1323595b9
1416478ac
15e5dc82
hexa6cb80

10931072 has 64 divisors (see below), whose sum is σ = 23500800. Its totient is φ = 5051904.

The previous prime is 10931071. The next prime is 10931077. The reversal of 10931072 is 27013901.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10931071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138329 + ... + 138407.

It is an arithmetic number, because the mean of its divisors is an integer number (367200).

Almost surely, 210931072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10931072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11750400).

10931072 is an abundant number, since it is smaller than the sum of its proper divisors (12569728).

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

10931072 is an equidigital number, since it uses as much as digits as its factorization.

10931072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 10931072 is about 3306.2171737501. The cubic root of 10931072 is about 221.9325066042.

Adding to 10931072 its reverse (27013901), we get a palindrome (37944973).

The spelling of 10931072 in words is "ten million, nine hundred thirty-one thousand, seventy-two".

Divisors: 1 2 4 8 16 23 32 46 47 64 79 92 94 128 158 184 188 316 368 376 632 736 752 1081 1264 1472 1504 1817 2162 2528 2944 3008 3634 3713 4324 5056 6016 7268 7426 8648 10112 14536 14852 17296 29072 29704 34592 58144 59408 69184 85399 116288 118816 138368 170798 232576 237632 341596 475264 683192 1366384 2732768 5465536 10931072