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47146948 = 2242127997
BaseRepresentation
bin1011001111011…
…0011111000100
310021201022110021
42303312133010
544032200243
64402304524
71111512442
oct263663704
9107638407
1047146948
1124682222
1213958144
1399c9904
146393b92
1542146ed
hex2cf67c4

47146948 has 12 divisors (see below), whose sum is σ = 82706092. Its totient is φ = 23516640.

The previous prime is 47146937. The next prime is 47147041. The reversal of 47146948 is 84964174.

It can be written as a sum of positive squares in 2 ways, for example, as 19289664 + 27857284 = 4392^2 + 5278^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12315 + ... + 15682.

Almost surely, 247146948 is an apocalyptic number.

It is an amenable number.

47146948 is a deficient number, since it is larger than the sum of its proper divisors (35559144).

47146948 is a wasteful number, since it uses less digits than its factorization.

47146948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28422 (or 28420 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 47146948 is about 6866.3635208165. The cubic root of 47146948 is about 361.2583229445.

Subtracting from 47146948 its sum of digits (43), we obtain a triangular number (47146905 = T9710).

The spelling of 47146948 in words is "forty-seven million, one hundred forty-six thousand, nine hundred forty-eight".

Divisors: 1 2 4 421 842 1684 27997 55994 111988 11786737 23573474 47146948