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142195229 = 1118171419
BaseRepresentation
bin10000111100110…
…11101000011101
3100220120021011222
420132123220131
5242400221404
622035423125
73344432231
oct1036335035
9326507158
10142195229
11732a1420
123b754aa5
13235c85b7
1414c565c1
15c73bdbe
hex879ba1d

142195229 has 8 divisors (see below), whose sum is σ = 155981280. Its totient is φ = 128552400.

The previous prime is 142195199. The next prime is 142195231. The reversal of 142195229 is 922591241.

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 142195229 - 216 = 142129693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142195279) 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, 33719 + ... + 37700.

It is an arithmetic number, because the mean of its divisors is an integer number (19497660).

Almost surely, 2142195229 is an apocalyptic number.

It is an amenable number.

142195229 is a deficient number, since it is larger than the sum of its proper divisors (13786051).

142195229 is a wasteful number, since it uses less digits than its factorization.

142195229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71611.

The product of its digits is 12960, while the sum is 35.

The square root of 142195229 is about 11924.5641010479. The cubic root of 142195229 is about 521.9493266626.

The spelling of 142195229 in words is "one hundred forty-two million, one hundred ninety-five thousand, two hundred twenty-nine".

Divisors: 1 11 181 1991 71419 785609 12926839 142195229