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48378931 = 291739643
BaseRepresentation
bin1011100010001…
…1010000110011
310101000220102021
42320203100303
544341111211
64444532311
71125133306
oct270432063
9111026367
1048378931
1125343897
1214251097
13a03b5b3
1465d4b3d
1543a9771
hex2e23433

48378931 has 8 divisors (see below), whose sum is σ = 50341680. Its totient is φ = 46435872.

The previous prime is 48378929. The next prime is 48378937. The reversal of 48378931 is 13987384.

It is a happy number.

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 48378931 - 21 = 48378929 is a prime.

It is a super-2 number, since 2×483789312 = 4681041929405522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (48378937) 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, 196 + ... + 9838.

It is an arithmetic number, because the mean of its divisors is an integer number (6292710).

Almost surely, 248378931 is an apocalyptic number.

48378931 is a deficient number, since it is larger than the sum of its proper divisors (1962749).

48378931 is a wasteful number, since it uses less digits than its factorization.

48378931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845.

The product of its digits is 145152, while the sum is 43.

The square root of 48378931 is about 6955.4964596354. The cubic root of 48378931 is about 364.3779509248.

The spelling of 48378931 in words is "forty-eight million, three hundred seventy-eight thousand, nine hundred thirty-one".

Divisors: 1 29 173 5017 9643 279647 1668239 48378931