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47872993 = 716214219
BaseRepresentation
bin1011011010011…
…1101111100001
310100002012101211
42312213233201
544223413433
64430030121
71120625260
oct266475741
9110065354
1047872993
1125028763
1214048341
139bc221c
1465025d7
1543098cd
hex2da7be1

47872993 has 8 divisors (see below), whose sum is σ = 54758720. Its totient is φ = 40998960.

The previous prime is 47872967. The next prime is 47872999. The reversal of 47872993 is 39927874.

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

It is a cyclic number.

It is not a de Polignac number, because 47872993 - 213 = 47864801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47872999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9238 + ... + 13456.

It is an arithmetic number, because the mean of its divisors is an integer number (6844840).

Almost surely, 247872993 is an apocalyptic number.

It is an amenable number.

47872993 is a deficient number, since it is larger than the sum of its proper divisors (6885727).

47872993 is a wasteful number, since it uses less digits than its factorization.

47872993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5847.

The product of its digits is 762048, while the sum is 49.

The square root of 47872993 is about 6919.0312183137. The cubic root of 47872993 is about 363.1032978894.

The spelling of 47872993 in words is "forty-seven million, eight hundred seventy-two thousand, nine hundred ninety-three".

Divisors: 1 7 1621 4219 11347 29533 6838999 47872993