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38572942 = 219286471
BaseRepresentation
bin1001001100100…
…1001110001110
32200120201010111
42103021032032
534333313232
63454430234
7645602362
oct223111616
980521114
1038572942
111a856471
1210b0237a
137cb7135
1451a12a2
1535be047
hex24c938e

38572942 has 4 divisors (see below), whose sum is σ = 57859416. Its totient is φ = 19286470.

The previous prime is 38572931. The next prime is 38572943. The reversal of 38572942 is 24927583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24927583 = 31180153.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 38572895 and 38572904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38572943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9643234 + ... + 9643237.

It is an arithmetic number, because the mean of its divisors is an integer number (14464854).

Almost surely, 238572942 is an apocalyptic number.

38572942 is a deficient number, since it is larger than the sum of its proper divisors (19286474).

38572942 is a wasteful number, since it uses less digits than its factorization.

38572942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19286473.

The product of its digits is 120960, while the sum is 40.

The square root of 38572942 is about 6210.7118754616. The cubic root of 38572942 is about 337.8787831383.

It can be divided in two parts, 3857294 and 2, that added together give a square (3857296 = 19642).

The spelling of 38572942 in words is "thirty-eight million, five hundred seventy-two thousand, nine hundred forty-two".

Divisors: 1 2 19286471 38572942