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38133031 is a prime number
BaseRepresentation
bin1001000101110…
…1110100100111
32122202100200111
42101131310213
534230224111
63441153451
7642061006
oct221356447
978670614
1038133031
111a585a02
121092b887
137b91b31
1450c8c3d
153533a21
hex245dd27

38133031 has 2 divisors, whose sum is σ = 38133032. Its totient is φ = 38133030.

The previous prime is 38132957. The next prime is 38133037. The reversal of 38133031 is 13033183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38133031 - 213 = 38124839 is a prime.

It is a super-2 number, since 2×381330312 = 2908256106493922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 38132993 and 38133011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38133037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19066515 + 19066516.

It is an arithmetic number, because the mean of its divisors is an integer number (19066516).

Almost surely, 238133031 is an apocalyptic number.

38133031 is a deficient number, since it is larger than the sum of its proper divisors (1).

38133031 is an equidigital number, since it uses as much as digits as its factorization.

38133031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 38133031 is about 6175.1948147407. The cubic root of 38133031 is about 336.5894056389.

The spelling of 38133031 in words is "thirty-eight million, one hundred thirty-three thousand, thirty-one".