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352020381 = 3731607399
BaseRepresentation
bin10100111110110…
…110011110011101
3220112101111011220
4110332312132131
51210104123011
654533003553
711503060326
oct2476663635
9815344156
10352020381
11170785139
1299a835b9
1357c129ab
1434a7544d
1520d87506
hex14fb679d

352020381 has 8 divisors (see below), whose sum is σ = 475790400. Its totient is φ = 231465312.

The previous prime is 352020349. The next prime is 352020401. The reversal of 352020381 is 183020253.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 352020381 - 25 = 352020349 is a prime.

It is a super-2 number, since 2×3520203812 = 247836697278770322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352020311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803481 + ... + 803918.

It is an arithmetic number, because the mean of its divisors is an integer number (59473800).

Almost surely, 2352020381 is an apocalyptic number.

It is an amenable number.

352020381 is a deficient number, since it is larger than the sum of its proper divisors (123770019).

352020381 is a wasteful number, since it uses less digits than its factorization.

352020381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607475.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 352020381 is about 18762.2061869067. The cubic root of 352020381 is about 706.0832940805.

The spelling of 352020381 in words is "three hundred fifty-two million, twenty thousand, three hundred eighty-one".

Divisors: 1 3 73 219 1607399 4822197 117340127 352020381