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47763140 = 2252388157
BaseRepresentation
bin1011011000110…
…0111011000100
310022212121201012
42312030323010
544211410030
64423421352
71116660065
oct266147304
9108777635
1047763140
1124a63177
1213bb4858
139b84219
1464b456c
1542d7095
hex2d8cec4

47763140 has 12 divisors (see below), whose sum is σ = 100302636. Its totient is φ = 19105248.

The previous prime is 47763119. The next prime is 47763143. The reversal of 47763140 is 4136774.

It is a happy number.

47763140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12503296 + 35259844 = 3536^2 + 5938^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47763097 and 47763106.

It is not an unprimeable number, because it can be changed into a prime (47763143) 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 3 ways as a sum of consecutive naturals, for example, 1194059 + ... + 1194098.

It is an arithmetic number, because the mean of its divisors is an integer number (8358553).

Almost surely, 247763140 is an apocalyptic number.

It is an amenable number.

47763140 is an abundant number, since it is smaller than the sum of its proper divisors (52539496).

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

47763140 is a wasteful number, since it uses less digits than its factorization.

47763140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388166 (or 2388164 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 47763140 is about 6911.0881921735. The cubic root of 47763140 is about 362.8253503938.

The spelling of 47763140 in words is "forty-seven million, seven hundred sixty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2388157 4776314 9552628 11940785 23881570 47763140