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47536942 = 223768471
BaseRepresentation
bin1011010101010…
…1101100101110
310022110010102111
42311111230232
544132140232
64414514234
71115025445
oct265255456
9108403374
1047536942
1124919232
1213b0597a
139b0528b
146455d5c
154290047
hex2d55b2e

47536942 has 4 divisors (see below), whose sum is σ = 71305416. Its totient is φ = 23768470.

The previous prime is 47536927. The next prime is 47536961. The reversal of 47536942 is 24963574.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24963574 = 212481787.

It is a super-2 number, since 2×475369422 = 4519521709422728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 47536895 and 47536904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11884234 + ... + 11884237.

It is an arithmetic number, because the mean of its divisors is an integer number (17826354).

Almost surely, 247536942 is an apocalyptic number.

47536942 is a deficient number, since it is larger than the sum of its proper divisors (23768474).

47536942 is a wasteful number, since it uses less digits than its factorization.

47536942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23768473.

The product of its digits is 181440, while the sum is 40.

The square root of 47536942 is about 6894.7039095236. The cubic root of 47536942 is about 362.2516843995.

The spelling of 47536942 in words is "forty-seven million, five hundred thirty-six thousand, nine hundred forty-two".

Divisors: 1 2 23768471 47536942