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38430380 = 2255633413
BaseRepresentation
bin1001001010011…
…0011010101100
32200022110120102
42102212122230
534314233010
63451410232
7644436632
oct222463254
980273512
1038430380
111a76934a
1210a53978
137c67291
145165352
153591ba5
hex24a66ac

38430380 has 24 divisors (see below), whose sum is σ = 80870832. Its totient is φ = 15340352.

The previous prime is 38430377. The next prime is 38430391. The reversal of 38430380 is 8303483.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9554 + ... + 12966.

It is an arithmetic number, because the mean of its divisors is an integer number (3369618).

Almost surely, 238430380 is an apocalyptic number.

It is an amenable number.

38430380 is an abundant number, since it is smaller than the sum of its proper divisors (42440452).

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

38430380 is a wasteful number, since it uses less digits than its factorization.

38430380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985 (or 3983 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 38430380 is about 6199.2241450040. The cubic root of 38430380 is about 337.4620131000.

The spelling of 38430380 in words is "thirty-eight million, four hundred thirty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 563 1126 2252 2815 3413 5630 6826 11260 13652 17065 34130 68260 1921519 3843038 7686076 9607595 19215190 38430380