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381000697 = 7117169691
BaseRepresentation
bin10110101101011…
…001101111111001
3222112220211200221
4112231121233321
51240014010242
6101450100041
712304311130
oct2655315771
9875824627
10381000697
11186079510
12a771a621
1360c1b7cc
143885a917
15236ae167
hex16b59bf9

381000697 has 16 divisors (see below), whose sum is σ = 481711104. Its totient is φ = 292698000.

The previous prime is 381000691. The next prime is 381000713. The reversal of 381000697 is 796000183.

It is not a de Polignac number, because 381000697 - 23 = 381000689 is a prime.

It is a super-2 number, since 2×3810006972 = 290323062228971618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (381000691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29379 + ... + 40312.

It is an arithmetic number, because the mean of its divisors is an integer number (30106944).

Almost surely, 2381000697 is an apocalyptic number.

It is an amenable number.

381000697 is a deficient number, since it is larger than the sum of its proper divisors (100710407).

381000697 is a wasteful number, since it uses less digits than its factorization.

381000697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69780.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 381000697 is about 19519.2391501308. The cubic root of 381000697 is about 724.9508944941.

The spelling of 381000697 in words is "three hundred eighty-one million, six hundred ninety-seven", and thus it is an aban number.

Divisors: 1 7 11 71 77 497 781 5467 69691 487837 766601 4948061 5366207 34636427 54428671 381000697