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352820480 = 285275641
BaseRepresentation
bin10101000001111…
…001110100000000
3220120220010201012
4111001321310000
51210310223410
655002100052
711512632065
oct2501716400
9816803635
10352820480
11171181281
129a1aa628
1358132c1c
1434c02c6c
1520e94605
hex15079d00

352820480 has 36 divisors (see below), whose sum is σ = 845118372. Its totient is φ = 141127680.

The previous prime is 352820453. The next prime is 352820491. The reversal of 352820480 is 84028253.

It can be written as a sum of positive squares in 2 ways, for example, as 280093696 + 72726784 = 16736^2 + 8528^2 .

It is a super-2 number, since 2×3528204802 = 248964582214860800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136541 + ... + 139100.

Almost surely, 2352820480 is an apocalyptic number.

It is an amenable number.

352820480 is an abundant number, since it is smaller than the sum of its proper divisors (492297892).

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

352820480 is an equidigital number, since it uses as much as digits as its factorization.

352820480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275662 (or 275648 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 352820480 is about 18783.5161777554. The cubic root of 352820480 is about 706.6178361101.

The spelling of 352820480 in words is "three hundred fifty-two million, eight hundred twenty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 275641 551282 1102564 1378205 2205128 2756410 4410256 5512820 8820512 11025640 17641024 22051280 35282048 44102560 70564096 88205120 176410240 352820480