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38530472 = 234816309
BaseRepresentation
bin1001001011111…
…0110110101000
32200111112212112
42102332312220
534330433342
63453501452
7645334511
oct222766650
980445775
1038530472
111a827572
1210aa1888
137ca09c6
14518da08
1535b1682
hex24beda8

38530472 has 8 divisors (see below), whose sum is σ = 72244650. Its totient is φ = 19265232.

The previous prime is 38530441. The next prime is 38530477. The reversal of 38530472 is 27403583.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38365636 + 164836 = 6194^2 + 406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (38530477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2408147 + ... + 2408162.

Almost surely, 238530472 is an apocalyptic number.

It is an amenable number.

38530472 is a deficient number, since it is larger than the sum of its proper divisors (33714178).

38530472 is a wasteful number, since it uses less digits than its factorization.

38530472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816315 (or 4816311 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 38530472 is about 6207.2918410527. The cubic root of 38530472 is about 337.7547326088.

The spelling of 38530472 in words is "thirty-eight million, five hundred thirty thousand, four hundred seventy-two".

Divisors: 1 2 4 8 4816309 9632618 19265236 38530472