Search a number
-
+
408125244 = 2231937101479
BaseRepresentation
bin11000010100110…
…111111100111100
31001102221220120210
4120110313330330
51313440001434
6104255312420
713054002342
oct3024677474
91042856523
10408125244
1119a41559a
12b481b710
1366727a37
143c2bb992
1525c6aee9
hex18537f3c

408125244 has 96 divisors (see below), whose sum is σ = 1041868800. Its totient is φ = 123897600.

The previous prime is 408125219. The next prime is 408125257. The reversal of 408125244 is 442521804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 851797 + ... + 852275.

It is an arithmetic number, because the mean of its divisors is an integer number (10852800).

Almost surely, 2408125244 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 408125244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (520934400).

408125244 is an abundant number, since it is smaller than the sum of its proper divisors (633743556).

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

408125244 is a wasteful number, since it uses less digits than its factorization.

408125244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 408125244 is about 20202.1098898110. The cubic root of 408125244 is about 741.7618380135.

It can be divided in two parts, 40812 and 5244, that added together give a triangular number (46056 = T303).

The spelling of 408125244 in words is "four hundred eight million, one hundred twenty-five thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 19 37 38 57 74 76 101 111 114 148 202 222 228 303 404 444 479 606 703 958 1212 1406 1437 1916 1919 2109 2812 2874 3737 3838 4218 5748 5757 7474 7676 8436 9101 11211 11514 14948 17723 18202 22422 23028 27303 35446 36404 44844 48379 53169 54606 70892 71003 96758 106338 109212 142006 145137 193516 212676 213009 284012 290274 336737 426018 580548 673474 852036 919201 1010211 1346948 1790023 1838402 2020422 2757603 3580046 3676804 4040844 5370069 5515206 7160092 10740138 11030412 21480276 34010437 68020874 102031311 136041748 204062622 408125244