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48515380 = 2252425769
BaseRepresentation
bin1011100100010…
…0100100110100
310101021211120221
42321010210310
544404443010
64451504124
71126242154
oct271044464
9111254527
1048515380
1125427361
12142b8044
13a088734
14662c764
1543d4dda
hex2e44934

48515380 has 12 divisors (see below), whose sum is σ = 101882340. Its totient is φ = 19406144.

The previous prime is 48515371. The next prime is 48515381. The reversal of 48515380 is 8351584.

It can be written as a sum of positive squares in 2 ways, for example, as 36529936 + 11985444 = 6044^2 + 3462^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48515381) 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 3 ways as a sum of consecutive naturals, for example, 1212865 + ... + 1212904.

It is an arithmetic number, because the mean of its divisors is an integer number (8490195).

Almost surely, 248515380 is an apocalyptic number.

It is an amenable number.

48515380 is an abundant number, since it is smaller than the sum of its proper divisors (53366960).

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

48515380 is a wasteful number, since it uses less digits than its factorization.

48515380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425778 (or 2425776 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 48515380 is about 6965.2982707132. The cubic root of 48515380 is about 364.7201958941.

The spelling of 48515380 in words is "forty-eight million, five hundred fifteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 2425769 4851538 9703076 12128845 24257690 48515380