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353430020 = 22519930079
BaseRepresentation
bin10101000100001…
…110101000000100
3220122001002211202
4111010032220010
51210434230040
655023122032
711521051136
oct2504165004
9818032752
10353430020
11171558229
129a443318
13582b74b8
1434d21056
1521065015
hex1510ea04

353430020 has 24 divisors (see below), whose sum is σ = 781267200. Its totient is φ = 133931232.

The previous prime is 353429981. The next prime is 353430037. The reversal of 353430020 is 20034353.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 353429974 and 353430001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464660 + ... + 465419.

It is an arithmetic number, because the mean of its divisors is an integer number (32552800).

Almost surely, 2353430020 is an apocalyptic number.

It is an amenable number.

353430020 is an abundant number, since it is smaller than the sum of its proper divisors (427837180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

353430020 is a wasteful number, since it uses less digits than its factorization.

353430020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930107 (or 930105 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 353430020 is about 18799.7345725944. The cubic root of 353430020 is about 707.0245245560.

Adding to 353430020 its reverse (20034353), we get a palindrome (373464373).

The spelling of 353430020 in words is "three hundred fifty-three million, four hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 930079 1860158 3720316 4650395 9300790 17671501 18601580 35343002 70686004 88357505 176715010 353430020