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48747640 = 2351218691
BaseRepresentation
bin1011100111110…
…1010001111000
310101201122012011
42321331101320
544434411030
64500455304
71131230254
oct271752170
9111648164
1048747640
1125575907
12143aa534
13a13a376
14668d264
15442db2a
hex2e7d478

48747640 has 16 divisors (see below), whose sum is σ = 109682280. Its totient is φ = 19499040.

The previous prime is 48747631. The next prime is 48747691. The reversal of 48747640 is 4674784.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1218691 = 48747640 / (4 + 8 + 7 + 4 + 7 + 6 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 48747593 and 48747602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609306 + ... + 609385.

Almost surely, 248747640 is an apocalyptic number.

48747640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48747640 is an abundant number, since it is smaller than the sum of its proper divisors (60934640).

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

48747640 is a wasteful number, since it uses less digits than its factorization.

48747640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218702 (or 1218698 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 48747640 is about 6981.9510167288. The cubic root of 48747640 is about 365.3012837366.

The spelling of 48747640 in words is "forty-eight million, seven hundred forty-seven thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1218691 2437382 4874764 6093455 9749528 12186910 24373820 48747640