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38258957 = 113478087
BaseRepresentation
bin1001000111110…
…0100100001101
32122222202102102
42101330210031
534243241312
63444004445
7643124102
oct221744415
978882372
1038258957
111a661580
1210990725
137c07249
14511caa9
15355aec2
hex247c90d

38258957 has 4 divisors (see below), whose sum is σ = 41737056. Its totient is φ = 34780860.

The previous prime is 38258953. The next prime is 38258981. The reversal of 38258957 is 75985283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75985283 = 116907753.

It is a cyclic number.

It is not a de Polignac number, because 38258957 - 22 = 38258953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38258953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739033 + ... + 1739054.

It is an arithmetic number, because the mean of its divisors is an integer number (10434264).

Almost surely, 238258957 is an apocalyptic number.

It is an amenable number.

38258957 is a deficient number, since it is larger than the sum of its proper divisors (3478099).

38258957 is a wasteful number, since it uses less digits than its factorization.

38258957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478098.

The product of its digits is 604800, while the sum is 47.

The square root of 38258957 is about 6185.3825265702. The cubic root of 38258957 is about 336.9595028632.

The spelling of 38258957 in words is "thirty-eight million, two hundred fifty-eight thousand, nine hundred fifty-seven".

Divisors: 1 11 3478087 38258957