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47970256 = 242998141
BaseRepresentation
bin1011011011111…
…1011111010000
310100021010211011
42312333133100
544240022011
64432100304
71121511655
oct266773720
9110233734
1047970256
1125094844
1214094694
139c27589
146529c2c
154328621
hex2dbf7d0

47970256 has 10 divisors (see below), whose sum is σ = 92942402. Its totient is φ = 23985120.

The previous prime is 47970211. The next prime is 47970257. The reversal of 47970256 is 65207974.

It can be written as a sum of positive squares in only one way, i.e., 33408400 + 14561856 = 5780^2 + 3816^2 .

It is a super-2 number, since 2×479702562 = 4602290921411072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47970257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1499055 + ... + 1499086.

Almost surely, 247970256 is an apocalyptic number.

It is an amenable number.

47970256 is a deficient number, since it is larger than the sum of its proper divisors (44972146).

47970256 is a wasteful number, since it uses less digits than its factorization.

47970256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998149 (or 2998143 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 47970256 is about 6926.0563093293. The cubic root of 47970256 is about 363.3490357848.

The spelling of 47970256 in words is "forty-seven million, nine hundred seventy thousand, two hundred fifty-six".

Divisors: 1 2 4 8 16 2998141 5996282 11992564 23985128 47970256