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142448205 = 359496547
BaseRepresentation
bin10000111110110…
…01011001001101
3100221001010012110
420133121121031
5242431320310
622045054233
73346534614
oct1037313115
9327033173
10142448205
1173454499
123b857379
13236867a3
1414cc087b
15c78bd20
hex87d964d

142448205 has 8 divisors (see below), whose sum is σ = 227917152. Its totient is φ = 75972368.

The previous prime is 142448191. The next prime is 142448239. The reversal of 142448205 is 502844241.

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

It is a cyclic number.

It is not a de Polignac number, because 142448205 - 213 = 142440013 is a prime.

It is a super-2 number, since 2×1424482052 = 40582982215444050, which contains 22 as substring.

It is a congruent number.

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, 4748259 + ... + 4748288.

It is an arithmetic number, because the mean of its divisors is an integer number (28489644).

Almost surely, 2142448205 is an apocalyptic number.

142448205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142448205 is a deficient number, since it is larger than the sum of its proper divisors (85468947).

142448205 is an equidigital number, since it uses as much as digits as its factorization.

142448205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9496555.

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 142448205 is about 11935.1667353246. The cubic root of 142448205 is about 522.2586723129.

The spelling of 142448205 in words is "one hundred forty-two million, four hundred forty-eight thousand, two hundred five".

Divisors: 1 3 5 15 9496547 28489641 47482735 142448205