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47272933 = 311152003
BaseRepresentation
bin1011010001010…
…1001111100101
310021221201021101
42310111033211
544100213213
64405120101
71112545651
oct264251745
9107851241
1047272933
1124758944
12139b9031
139a42066
1463c7a61
15423bbdd
hex2d153e5

47272933 has 4 divisors (see below), whose sum is σ = 47425248. Its totient is φ = 47120620.

The previous prime is 47272919. The next prime is 47272943. The reversal of 47272933 is 33927274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47272933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47272892 and 47272901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47272943) 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, 75691 + ... + 76312.

It is an arithmetic number, because the mean of its divisors is an integer number (11856312).

Almost surely, 247272933 is an apocalyptic number.

It is an amenable number.

47272933 is a deficient number, since it is larger than the sum of its proper divisors (152315).

47272933 is a wasteful number, since it uses less digits than its factorization.

47272933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152314.

The product of its digits is 63504, while the sum is 37.

The square root of 47272933 is about 6875.5314703665. The cubic root of 47272933 is about 361.5798188356.

It can be divided in two parts, 47272 and 933, that added together give a triangular number (48205 = T310).

The spelling of 47272933 in words is "forty-seven million, two hundred seventy-two thousand, nine hundred thirty-three".

Divisors: 1 311 152003 47272933