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47970038 = 237364303
BaseRepresentation
bin1011011011111…
…1011011110110
310100021010112002
42312333123312
544240020123
64432055302
71121511224
oct266773366
9110233462
1047970038
1125094666
1214094532
139c2744c
146529b14
154328528
hex2dbf6f6

47970038 has 8 divisors (see below), whose sum is σ = 72149088. Its totient is φ = 23920344.

The previous prime is 47970037. The next prime is 47970047. The reversal of 47970038 is 83007974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×479700382 = 4602249091442888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47969983 and 47970010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47970037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31406 + ... + 32897.

It is an arithmetic number, because the mean of its divisors is an integer number (9018636).

Almost surely, 247970038 is an apocalyptic number.

47970038 is a deficient number, since it is larger than the sum of its proper divisors (24179050).

47970038 is a wasteful number, since it uses less digits than its factorization.

47970038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64678.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 47970038 is about 6926.0405716398. The cubic root of 47970038 is about 363.3484853728.

The spelling of 47970038 in words is "forty-seven million, nine hundred seventy thousand, thirty-eight".

Divisors: 1 2 373 746 64303 128606 23985019 47970038