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381625701 = 3127208567
BaseRepresentation
bin10110101111110…
…010010101100101
3222121002121001020
4112233302111211
51240144010301
6101511321353
712312523242
oct2657622545
9877077036
10381625701
11186466046
12a7980259
13610aa132
14389805c9
1523784436
hex16bf2565

381625701 has 4 divisors (see below), whose sum is σ = 508834272. Its totient is φ = 254417132.

The previous prime is 381625691. The next prime is 381625757. The reversal of 381625701 is 107526183.

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: 107526183 = 335842061.

It is a cyclic number.

It is not a de Polignac number, because 381625701 - 211 = 381623653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381625201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63604281 + ... + 63604286.

It is an arithmetic number, because the mean of its divisors is an integer number (127208568).

Almost surely, 2381625701 is an apocalyptic number.

It is an amenable number.

381625701 is a deficient number, since it is larger than the sum of its proper divisors (127208571).

381625701 is a wasteful number, since it uses less digits than its factorization.

381625701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127208570.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 381625701 is about 19535.2425375269. The cubic root of 381625701 is about 725.3470877122.

The spelling of 381625701 in words is "three hundred eighty-one million, six hundred twenty-five thousand, seven hundred one".

Divisors: 1 3 127208567 381625701