Search a number
-
+
10386809172 = 223471944587
BaseRepresentation
bin10011010110001101…
…00010000101010100
3222210212121120120000
421223012202011110
5132233010343142
64434401211300
7515252264325
oct115306420524
928725546500
1010386809172
1144500a0513
12201a630b30
13c96b90a3c
1470769244c
1540bd1814c
hex26b1a2154

10386809172 has 60 divisors (see below), whose sum is σ = 27191545920. Its totient is φ = 3457376784.

The previous prime is 10386809159. The next prime is 10386809197. The reversal of 10386809172 is 27190868301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 210663 + ... + 255249.

It is an arithmetic number, because the mean of its divisors is an integer number (453192432).

Almost surely, 210386809172 is an apocalyptic number.

10386809172 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 10386809172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13595772960).

10386809172 is an abundant number, since it is smaller than the sum of its proper divisors (16804736748).

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

10386809172 is a wasteful number, since it uses less digits than its factorization.

10386809172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45322 (or 45311 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 10386809172 in words is "ten billion, three hundred eighty-six million, eight hundred nine thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 719 1438 2157 2876 4314 6471 8628 12942 19413 25884 38826 44587 58239 77652 89174 116478 133761 178348 232956 267522 401283 535044 802566 1203849 1605132 2407698 3611547 4815396 7223094 14446188 32058053 64116106 96174159 128232212 192348318 288522477 384696636 577044954 865567431 1154089908 1731134862 2596702293 3462269724 5193404586 10386809172