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142483890 = 2354749463
BaseRepresentation
bin10000111111000…
…10000110110010
3100221002221011010
420133202012302
5242433441030
622045531350
73350043633
oct1037420662
9327087133
10142483890
117347928a
123b873b56
1323699ac3
1414ccd88a
15c7976b0
hex87e21b2

142483890 has 16 divisors (see below), whose sum is σ = 341961408. Its totient is φ = 37995696.

The previous prime is 142483877. The next prime is 142483903. The reversal of 142483890 is 98384241.

It is an interprime number because it is at equal distance from previous prime (142483877) and next prime (142483903).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374702 + ... + 2374761.

It is an arithmetic number, because the mean of its divisors is an integer number (21372588).

Almost surely, 2142483890 is an apocalyptic number.

142483890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142483890 is an abundant number, since it is smaller than the sum of its proper divisors (199477518).

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

142483890 is a wasteful number, since it uses less digits than its factorization.

142483890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749473.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 142483890 is about 11936.6615935948. The cubic root of 142483890 is about 522.3022793785.

The spelling of 142483890 in words is "one hundred forty-two million, four hundred eighty-three thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 4749463 9498926 14248389 23747315 28496778 47494630 71241945 142483890