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48642151 = 172861303
BaseRepresentation
bin1011100110001…
…1100001100111
310101112021111011
42321203201213
544423022101
64454323051
71130310565
oct271434147
9111467434
1048642151
1125503628
1214359487
13a10134c
146662a35
15440c751
hex2e63867

48642151 has 4 divisors (see below), whose sum is σ = 51503472. Its totient is φ = 45780832.

The previous prime is 48642127. The next prime is 48642157. The reversal of 48642151 is 15124684.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48642151 - 225 = 15087719 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48642157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430635 + ... + 1430668.

It is an arithmetic number, because the mean of its divisors is an integer number (12875868).

Almost surely, 248642151 is an apocalyptic number.

48642151 is a deficient number, since it is larger than the sum of its proper divisors (2861321).

48642151 is a wasteful number, since it uses less digits than its factorization.

48642151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861320.

The product of its digits is 7680, while the sum is 31.

The square root of 48642151 is about 6974.3925183488. The cubic root of 48642151 is about 365.0375916746.

The spelling of 48642151 in words is "forty-eight million, six hundred forty-two thousand, one hundred fifty-one".

Divisors: 1 17 2861303 48642151