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38985457 = 737150523
BaseRepresentation
bin1001010010110…
…1111011110001
32201100122222211
42110231323301
534440013312
63511332121
7652241140
oct224557361
981318884
1038985457
1120008395
1211081041
1380ccb24
14526b757
1536513a7
hex252def1

38985457 has 8 divisors (see below), whose sum is σ = 45759296. Its totient is φ = 32512752.

The previous prime is 38985451. The next prime is 38985467. The reversal of 38985457 is 75458983.

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 38985457 - 211 = 38983409 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 38985457.

It is not an unprimeable number, because it can be changed into a prime (38985451) 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, 75003 + ... + 75520.

It is an arithmetic number, because the mean of its divisors is an integer number (5719912).

Almost surely, 238985457 is an apocalyptic number.

38985457 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

38985457 is a deficient number, since it is larger than the sum of its proper divisors (6773839).

38985457 is a wasteful number, since it uses less digits than its factorization.

38985457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150567.

The product of its digits is 1209600, while the sum is 49.

The square root of 38985457 is about 6243.8335179599. The cubic root of 38985457 is about 339.0789865924.

The spelling of 38985457 in words is "thirty-eight million, nine hundred eighty-five thousand, four hundred fifty-seven".

Divisors: 1 7 37 259 150523 1053661 5569351 38985457