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825713952 = 25371228741
BaseRepresentation
bin110001001101110…
…110010100100000
32010112201121121020
4301031312110200
53142340321302
6213533525440
726314311210
oct6115662440
92115647536
10825713952
11394104128
121b0643880
131020b704b
147b940240
154c755ebc
hex31376520

825713952 has 48 divisors (see below), whose sum is σ = 2477143872. Its totient is φ = 235918080.

The previous prime is 825713927. The next prime is 825713957. The reversal of 825713952 is 259317528.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (825713957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613699 + ... + 615042.

It is an arithmetic number, because the mean of its divisors is an integer number (51607164).

Almost surely, 2825713952 is an apocalyptic number.

It is an amenable number.

825713952 is an abundant number, since it is smaller than the sum of its proper divisors (1651429920).

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

825713952 is a wasteful number, since it uses less digits than its factorization.

825713952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228761 (or 1228753 counting only the distinct ones).

The product of its digits is 151200, while the sum is 42.

The square root of 825713952 is about 28735.2388540621. The cubic root of 825713952 is about 938.1591981752.

The spelling of 825713952 in words is "eight hundred twenty-five million, seven hundred thirteen thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 1228741 2457482 3686223 4914964 7372446 8601187 9829928 14744892 17202374 19659856 25803561 29489784 34404748 39319712 51607122 58979568 68809496 103214244 117959136 137618992 206428488 275237984 412856976 825713952