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352420641 = 3271551519
BaseRepresentation
bin10101000000011…
…000001100100001
3220120010211020100
4111000120030201
51210204430031
654545333013
711506345266
oct2500301441
9816124210
10352420641
11170a28931
129a037169
1358022c31
1434b3b26d
1520e15de6
hex15018321

352420641 has 12 divisors (see below), whose sum is σ = 516222720. Its totient is φ = 231637560.

The previous prime is 352420631. The next prime is 352420661. The reversal of 352420641 is 146024253.

It is not a de Polignac number, because 352420641 - 25 = 352420609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (352420631) 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, 275121 + ... + 276398.

It is an arithmetic number, because the mean of its divisors is an integer number (43018560).

Almost surely, 2352420641 is an apocalyptic number.

It is an amenable number.

352420641 is a deficient number, since it is larger than the sum of its proper divisors (163802079).

352420641 is a wasteful number, since it uses less digits than its factorization.

352420641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551596 (or 551593 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 352420641 is about 18772.8698125779. The cubic root of 352420641 is about 706.3508068600.

Adding to 352420641 its reverse (146024253), we get a palindrome (498444894).

The spelling of 352420641 in words is "three hundred fifty-two million, four hundred twenty thousand, six hundred forty-one".

Divisors: 1 3 9 71 213 639 551519 1654557 4963671 39157849 117473547 352420641