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396472551 = 3235745979
BaseRepresentation
bin10111101000011…
…011000011100111
31000122000220002120
4113220123003213
51302444110201
6103201441023
712552650436
oct2750330347
91018026076
10396472551
11193886772
12b0940173
13641a7b57
143a92711d
1524c18536
hex17a1b0e7

396472551 has 8 divisors (see below), whose sum is σ = 551614080. Its totient is φ = 252823032.

The previous prime is 396472541. The next prime is 396472613. The reversal of 396472551 is 155274693.

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

It is a de Polignac number, because none of the positive numbers 2k-396472551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396472511) 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, 2872921 + ... + 2873058.

It is an arithmetic number, because the mean of its divisors is an integer number (68951760).

Almost surely, 2396472551 is an apocalyptic number.

396472551 is a deficient number, since it is larger than the sum of its proper divisors (155141529).

396472551 is a wasteful number, since it uses less digits than its factorization.

396472551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5746005.

The product of its digits is 226800, while the sum is 42.

The square root of 396472551 is about 19911.6184927293. The cubic root of 396472551 is about 734.6340294776.

The spelling of 396472551 in words is "three hundred ninety-six million, four hundred seventy-two thousand, five hundred fifty-one".

Divisors: 1 3 23 69 5745979 17237937 132157517 396472551