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38023520 = 2551072221
BaseRepresentation
bin1001000100001…
…1000101100000
32122112210110112
42101003011200
534213223040
63434550452
7641123513
oct221030540
978483415
1038023520
111a5106a7
1210898428
137b54032
14509ad7a
153511365
hex2443160

38023520 has 48 divisors (see below), whose sum is σ = 90710928. Its totient is φ = 15060480.

The previous prime is 38023519. The next prime is 38023529. The reversal of 38023520 is 2532083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38023529) 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, 16010 + ... + 18230.

It is an arithmetic number, because the mean of its divisors is an integer number (1889811).

Almost surely, 238023520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38023520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45355464).

38023520 is an abundant number, since it is smaller than the sum of its proper divisors (52687408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38023520 is a wasteful number, since it uses less digits than its factorization.

38023520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343 (or 2335 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 38023520 is about 6166.3214317776. The cubic root of 38023520 is about 336.2668892352.

The spelling of 38023520 in words is "thirty-eight million, twenty-three thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 107 160 214 428 535 856 1070 1712 2140 2221 3424 4280 4442 8560 8884 11105 17120 17768 22210 35536 44420 71072 88840 177680 237647 355360 475294 950588 1188235 1901176 2376470 3802352 4752940 7604704 9505880 19011760 38023520