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353252440 = 23531284881
BaseRepresentation
bin10101000011100…
…011010001011000
3220121201002020201
4111003203101120
51210413034230
655015231544
711516411332
oct2503432130
9817632221
10353252440
11171446872
129a3785b4
1358254718
1434cb6452
152102c5ca
hex150e3458

353252440 has 32 divisors (see below), whose sum is σ = 820460160. Its totient is φ = 136742400.

The previous prime is 353252407. The next prime is 353252447. The reversal of 353252440 is 44252353.

It is a junction number, because it is equal to n+sod(n) for n = 353252399 and 353252408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353252447) 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, 141201 + ... + 143680.

It is an arithmetic number, because the mean of its divisors is an integer number (25639380).

Almost surely, 2353252440 is an apocalyptic number.

It is an amenable number.

353252440 is an abundant number, since it is smaller than the sum of its proper divisors (467207720).

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

353252440 is a wasteful number, since it uses less digits than its factorization.

353252440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284923 (or 284919 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 353252440 is about 18795.0110401670. The cubic root of 353252440 is about 706.9060905032.

The spelling of 353252440 in words is "three hundred fifty-three million, two hundred fifty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 284881 569762 1139524 1424405 2279048 2848810 5697620 8831311 11395240 17662622 35325244 44156555 70650488 88313110 176626220 353252440