[go: up one dir, main page]

Search a number
-
+
10638712 = 237189977
BaseRepresentation
bin101000100101…
…010101111000
3202000111120101
4220211111320
510210414322
61020005144
7156266440
oct50452570
922014511
1010638712
116007027
1236907b4
1322864c6
1415ad120
15e02327
hexa25578

10638712 has 16 divisors (see below), whose sum is σ = 22797360. Its totient is φ = 4559424.

The previous prime is 10638709. The next prime is 10638713. The reversal of 10638712 is 21783601.

It is a super-2 number, since 2×106387122 = 226364386037888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10638713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94933 + ... + 95044.

It is an arithmetic number, because the mean of its divisors is an integer number (1424835).

Almost surely, 210638712 is an apocalyptic number.

It is an amenable number.

10638712 is an abundant number, since it is smaller than the sum of its proper divisors (12158648).

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

10638712 is a wasteful number, since it uses less digits than its factorization.

10638712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189990 (or 189986 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 10638712 is about 3261.7038492175. The cubic root of 10638712 is about 219.9360144499.

The spelling of 10638712 in words is "ten million, six hundred thirty-eight thousand, seven hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 189977 379954 759908 1329839 1519816 2659678 5319356 10638712