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38857343 = 721575051
BaseRepresentation
bin1001010000111…
…0101001111111
32201010011020212
42110032221333
534421413333
63504503035
7651165500
oct224165177
981104225
1038857343
111aa30108
121101aa7b
138086715
145236ba7
153628448
hex250ea7f

38857343 has 12 divisors (see below), whose sum is σ = 45498312. Its totient is φ = 33087600.

The previous prime is 38857333. The next prime is 38857349. The reversal of 38857343 is 34375883.

It is not a de Polignac number, because 38857343 - 26 = 38857279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38857343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38857349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5168 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (3791526).

Almost surely, 238857343 is an apocalyptic number.

38857343 is a deficient number, since it is larger than the sum of its proper divisors (6640969).

38857343 is a wasteful number, since it uses less digits than its factorization.

38857343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5222 (or 5215 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 38857343 is about 6233.5658334536. The cubic root of 38857343 is about 338.7071518904.

The spelling of 38857343 in words is "thirty-eight million, eight hundred fifty-seven thousand, three hundred forty-three".

Divisors: 1 7 49 157 1099 5051 7693 35357 247499 793007 5551049 38857343