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352628009 = 2391475431
BaseRepresentation
bin10101000001001…
…010110100101001
3220120112100200122
4111001022310221
51210233044014
654554013025
711511200666
oct2501126451
9816470618
10352628009
1117105a708
129a117175
1358096436
1434b92a6d
1520e5758e
hex1504ad29

352628009 has 4 divisors (see below), whose sum is σ = 354103680. Its totient is φ = 351152340.

The previous prime is 352627969. The next prime is 352628041. The reversal of 352628009 is 900826253.

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.

It is a cyclic number.

It is not a de Polignac number, because 352628009 - 212 = 352623913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 352628009.

It is not an unprimeable number, because it can be changed into a prime (352628099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737477 + ... + 737954.

It is an arithmetic number, because the mean of its divisors is an integer number (88525920).

Almost surely, 2352628009 is an apocalyptic number.

It is an amenable number.

352628009 is a deficient number, since it is larger than the sum of its proper divisors (1475671).

352628009 is a wasteful number, since it uses less digits than its factorization.

352628009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475670.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 352628009 is about 18778.3920770656. The cubic root of 352628009 is about 706.4893211025.

The spelling of 352628009 in words is "three hundred fifty-two million, six hundred twenty-eight thousand, nine".

Divisors: 1 239 1475431 352628009