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381824697 = 3911139709
BaseRepresentation
bin10110110000100…
…010111010111001
3222121110201000110
4112300202322321
51240221342242
6101515454533
712314312352
oct2660427271
9877421013
10381824697
11186591601
12a7a57449
1361149897
14389d2d29
15237c339c
hex16c22eb9

381824697 has 8 divisors (see below), whose sum is σ = 509662080. Its totient is φ = 254268560.

The previous prime is 381824693. The next prime is 381824713. The reversal of 381824697 is 796428183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381824697 - 22 = 381824693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381824693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67122 + ... + 72587.

It is an arithmetic number, because the mean of its divisors is an integer number (63707760).

Almost surely, 2381824697 is an apocalyptic number.

It is an amenable number.

381824697 is a deficient number, since it is larger than the sum of its proper divisors (127837383).

381824697 is a wasteful number, since it uses less digits than its factorization.

381824697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140623.

The product of its digits is 580608, while the sum is 48.

The square root of 381824697 is about 19540.3351301865. The cubic root of 381824697 is about 725.4731414934.

The spelling of 381824697 in words is "three hundred eighty-one million, eight hundred twenty-four thousand, six hundred ninety-seven".

Divisors: 1 3 911 2733 139709 419127 127274899 381824697