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38572452 = 22321071457
BaseRepresentation
bin1001001100100…
…1000110100100
32200120200110100
42103021012210
534333304302
63454424100
7645601062
oct223110644
980520410
1038572452
111a856066
1210b02030
137cb6b49
1451a1032
1535bdd1c
hex24c91a4

38572452 has 18 divisors (see below), whose sum is σ = 97502678. Its totient is φ = 12857472.

The previous prime is 38572447. The next prime is 38572459. The reversal of 38572452 is 25427583.

38572452 is a `hidden beast` number, since 38 + 572 + 4 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 33802596 + 4769856 = 5814^2 + 2184^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1071457 = 38572452 / (3 + 8 + 5 + 7 + 2 + 4 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (38572459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 535693 + ... + 535764.

Almost surely, 238572452 is an apocalyptic number.

It is an amenable number.

38572452 is an abundant number, since it is smaller than the sum of its proper divisors (58930226).

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

38572452 is a wasteful number, since it uses less digits than its factorization.

38572452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071467 (or 1071462 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 38572452 is about 6210.6724273624. The cubic root of 38572452 is about 337.8773524177.

The spelling of 38572452 in words is "thirty-eight million, five hundred seventy-two thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 1071457 2142914 3214371 4285828 6428742 9643113 12857484 19286226 38572452