Search a number
-
+
63125120 = 275531861
BaseRepresentation
bin1111000011001…
…1011010000000
311101210002101102
43300303122000
5112130000440
610132553532
71364361152
oct360633200
9141702342
1063125120
11326a5923
12191828a8
1310102556
148552ad2
15581db15
hex3c33680

63125120 has 64 divisors (see below), whose sum is σ = 153838440. Its totient is φ = 24760320.

The previous prime is 63125113. The next prime is 63125149. The reversal of 63125120 is 2152136.

It can be written as a sum of positive squares in 4 ways, for example, as 35331136 + 27793984 = 5944^2 + 5272^2 .

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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 63125092 and 63125101.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 32990 + ... + 34850.

Almost surely, 263125120 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 63125120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76919220).

63125120 is an abundant number, since it is smaller than the sum of its proper divisors (90713320).

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

63125120 is a wasteful number, since it uses less digits than its factorization.

63125120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 63125120 is about 7945.1318428331. The cubic root of 63125120 is about 398.1689643942.

Adding to 63125120 its reverse (2152136), we get a palindrome (65277256).

The spelling of 63125120 in words is "sixty-three million, one hundred twenty-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 53 64 80 106 128 160 212 265 320 424 530 640 848 1060 1696 1861 2120 3392 3722 4240 6784 7444 8480 9305 14888 16960 18610 29776 33920 37220 59552 74440 98633 119104 148880 197266 238208 297760 394532 493165 595520 789064 986330 1191040 1578128 1972660 3156256 3945320 6312512 7890640 12625024 15781280 31562560 63125120