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47793828 = 2233982819
BaseRepresentation
bin1011011001010…
…0011010100100
310022221011210210
42312110122210
544213400303
64424215420
71120145415
oct266243244
9108834723
1047793828
1124a84235
121400a570
139b95194
1464c180c
1542e1203
hex2d946a4

47793828 has 12 divisors (see below), whose sum is σ = 111518960. Its totient is φ = 15931272.

The previous prime is 47793763. The next prime is 47793829. The reversal of 47793828 is 82839774.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (47793829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991398 + ... + 1991421.

Almost surely, 247793828 is an apocalyptic number.

It is an amenable number.

47793828 is an abundant number, since it is smaller than the sum of its proper divisors (63725132).

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

47793828 is a wasteful number, since it uses less digits than its factorization.

47793828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3982826 (or 3982824 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 47793828 is about 6913.3080359550. The cubic root of 47793828 is about 362.9030393158.

The spelling of 47793828 in words is "forty-seven million, seven hundred ninety-three thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 3982819 7965638 11948457 15931276 23896914 47793828