Search a number
-
+
315032452 = 22729387971
BaseRepresentation
bin10010110001110…
…000001110000100
3210221210022021121
4102301300032010
51121122014302
651132123324
710543505650
oct2261601604
9727708247
10315032452
111519115a9
1289606544
1350362147
142dba7a60
151c9cce37
hex12c70384

315032452 has 24 divisors (see below), whose sum is σ = 651792960. Its totient is φ = 130357920.

The previous prime is 315032441. The next prime is 315032453. The reversal of 315032452 is 254230513.

It is not an unprimeable number, because it can be changed into a prime (315032453) by changing a digit.

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, 193174 + ... + 194797.

It is an arithmetic number, because the mean of its divisors is an integer number (27158040).

Almost surely, 2315032452 is an apocalyptic number.

It is an amenable number.

315032452 is an abundant number, since it is smaller than the sum of its proper divisors (336760508).

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

315032452 is a wasteful number, since it uses less digits than its factorization.

315032452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388011 (or 388009 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 315032452 is about 17749.1535572827. The cubic root of 315032452 is about 680.4325765493.

Adding to 315032452 its reverse (254230513), we get a palindrome (569262965).

The spelling of 315032452 in words is "three hundred fifteen million, thirty-two thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 387971 775942 1551884 2715797 5431594 10863188 11251159 22502318 45004636 78758113 157516226 315032452