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47813049 = 3253100237
BaseRepresentation
bin1011011001100…
…1000110111001
310022222011011200
42312121012321
544220004144
64424444413
71120255434
oct266310671
9108864150
1047813049
1124a97719
1214019709
139ba0b5b
1464c881b
1542e6c69
hex2d991b9

47813049 has 12 divisors (see below), whose sum is σ = 70367076. Its totient is φ = 31273632.

The previous prime is 47813047. The next prime is 47813099. The reversal of 47813049 is 94031874.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17640000 + 30173049 = 4200^2 + 5493^2 .

It is not a de Polignac number, because 47813049 - 21 = 47813047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47813041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49642 + ... + 50595.

It is an arithmetic number, because the mean of its divisors is an integer number (5863923).

Almost surely, 247813049 is an apocalyptic number.

It is an amenable number.

47813049 is a deficient number, since it is larger than the sum of its proper divisors (22554027).

47813049 is a wasteful number, since it uses less digits than its factorization.

47813049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100296 (or 100293 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 47813049 is about 6914.6980411295. The cubic root of 47813049 is about 362.9516817503.

The spelling of 47813049 in words is "forty-seven million, eight hundred thirteen thousand, forty-nine".

Divisors: 1 3 9 53 159 477 100237 300711 902133 5312561 15937683 47813049