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142058990 = 2514205899
BaseRepresentation
bin10000111011110…
…10010111101110
3100220022100022002
420131322113232
5242331341430
622032452302
73343324103
oct1035722756
9326270262
10142058990
1173209027
123b6aa092
132357b598
1414c1caaa
15c711845
hex877a5ee

142058990 has 8 divisors (see below), whose sum is σ = 255706200. Its totient is φ = 56823592.

The previous prime is 142058989. The next prime is 142058993. The reversal of 142058990 is 99850241.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142058993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7102940 + ... + 7102959.

It is an arithmetic number, because the mean of its divisors is an integer number (31963275).

Almost surely, 2142058990 is an apocalyptic number.

142058990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142058990 is a deficient number, since it is larger than the sum of its proper divisors (113647210).

142058990 is a wasteful number, since it uses less digits than its factorization.

142058990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14205906.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 142058990 is about 11918.8501962228. The cubic root of 142058990 is about 521.7825780374.

The spelling of 142058990 in words is "one hundred forty-two million, fifty-eight thousand, nine hundred ninety".

Divisors: 1 2 5 10 14205899 28411798 71029495 142058990