Search a number
-
+
52172480 = 265198581
BaseRepresentation
bin1100011100000…
…1011011000000
310122011122012002
43013001123000
5101324004410
65102123132
71202313233
oct307013300
9118148162
1052172480
11274a4a58
12155804a8
13aa691b9
146d0141a
1548a87a5
hex31c16c0

52172480 has 56 divisors (see below), whose sum is σ = 130789680. Its totient is φ = 19768320.

The previous prime is 52172447. The next prime is 52172503. The reversal of 52172480 is 8427125.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790 + ... + 10370.

It is an arithmetic number, because the mean of its divisors is an integer number (2335530).

Almost surely, 252172480 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 52172480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65394840).

52172480 is an abundant number, since it is smaller than the sum of its proper divisors (78617200).

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

52172480 is a wasteful number, since it uses less digits than its factorization.

52172480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8617 (or 8607 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 52172480 is about 7223.0519865220. The cubic root of 52172480 is about 373.6633419892.

The spelling of 52172480 in words is "fifty-two million, one hundred seventy-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 152 160 190 304 320 380 608 760 1216 1520 3040 6080 8581 17162 34324 42905 68648 85810 137296 163039 171620 274592 326078 343240 549184 652156 686480 815195 1304312 1372960 1630390 2608624 2745920 3260780 5217248 6521560 10434496 13043120 26086240 52172480