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383460381 = 32172506277
BaseRepresentation
bin10110110110110…
…010010000011101
3222201112210202100
4112312302100131
51241131213011
6102014515313
712334234203
oct2666622035
9881483670
10383460381
111874a9507
12a8505b39
13615a0245
1438cdb073
15239e7d56
hex16db241d

383460381 has 12 divisors (see below), whose sum is σ = 586469052. Its totient is φ = 240602496.

The previous prime is 383460379. The next prime is 383460383. The reversal of 383460381 is 183064383.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (383460379) and next prime (383460383).

It can be written as a sum of positive squares in 2 ways, for example, as 285272100 + 98188281 = 16890^2 + 9909^2 .

It is not a de Polignac number, because 383460381 - 21 = 383460379 is a prime.

It is a super-2 number, since 2×3834603812 = 294083727593330322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383460383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1252986 + ... + 1253291.

It is an arithmetic number, because the mean of its divisors is an integer number (48872421).

Almost surely, 2383460381 is an apocalyptic number.

It is an amenable number.

383460381 is a deficient number, since it is larger than the sum of its proper divisors (203008671).

383460381 is a wasteful number, since it uses less digits than its factorization.

383460381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506300 (or 2506297 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 383460381 is about 19582.1444433443. The cubic root of 383460381 is about 726.5076078044.

The spelling of 383460381 in words is "three hundred eighty-three million, four hundred sixty thousand, three hundred eighty-one".

Divisors: 1 3 9 17 51 153 2506277 7518831 22556493 42606709 127820127 383460381