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38948385 = 3572192789
BaseRepresentation
bin1001010010010…
…0111000100001
32201021210010210
42110210320201
534432322020
63510444333
7652025100
oct224447041
981253123
1038948385
111aa92553
12110636a9
1380b8ca8
14525c037
1536453e0
hex2524e21

38948385 has 48 divisors (see below), whose sum is σ = 76334400. Its totient is φ = 16861824.

The previous prime is 38948381. The next prime is 38948387. The reversal of 38948385 is 58384983.

It is not a de Polignac number, because 38948385 - 22 = 38948381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38948381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12571 + ... + 15359.

It is an arithmetic number, because the mean of its divisors is an integer number (1590300).

Almost surely, 238948385 is an apocalyptic number.

38948385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38948385 is a deficient number, since it is larger than the sum of its proper divisors (37386015).

38948385 is a wasteful number, since it uses less digits than its factorization.

38948385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830 (or 2823 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 38948385 is about 6240.8641228599. The cubic root of 38948385 is about 338.9714736571.

The spelling of 38948385 in words is "thirty-eight million, nine hundred forty-eight thousand, three hundred eighty-five".

Divisors: 1 3 5 7 15 19 21 35 49 57 95 105 133 147 245 285 399 665 735 931 1995 2789 2793 4655 8367 13945 13965 19523 41835 52991 58569 97615 136661 158973 264955 292845 370937 409983 683305 794865 1112811 1854685 2049915 2596559 5564055 7789677 12982795 38948385