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48919431 = 3111482407
BaseRepresentation
bin1011101010011…
…1001110000111
310102001100211210
42322213032013
5100010410211
64504302503
71132544151
oct272471607
9112040753
1048919431
1125682990
1214471a33
13a19a612
1466d5ad1
1544649a6
hex2ea7387

48919431 has 8 divisors (see below), whose sum is σ = 71155584. Its totient is φ = 29648120.

The previous prime is 48919427. The next prime is 48919463. The reversal of 48919431 is 13491984.

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 48919431 - 22 = 48919427 is a prime.

It is a super-2 number, since 2×489194312 = 4786221458727522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 48919431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48919411) 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, 741171 + ... + 741236.

It is an arithmetic number, because the mean of its divisors is an integer number (8894448).

Almost surely, 248919431 is an apocalyptic number.

48919431 is a deficient number, since it is larger than the sum of its proper divisors (22236153).

48919431 is a wasteful number, since it uses less digits than its factorization.

48919431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482421.

The product of its digits is 31104, while the sum is 39.

The square root of 48919431 is about 6994.2427038243. The cubic root of 48919431 is about 365.7298986618.

The spelling of 48919431 in words is "forty-eight million, nine hundred nineteen thousand, four hundred thirty-one".

Divisors: 1 3 11 33 1482407 4447221 16306477 48919431