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142470 = 23251583
BaseRepresentation
bin100010110010000110
321020102200
4202302012
514024340
63015330
71132236
oct426206
9236380
10142470
1198049
126a546
134cb03
1439cc6
152c330
hex22c86

142470 has 24 divisors (see below), whose sum is σ = 370656. Its totient is φ = 37968.

The previous prime is 142469. The next prime is 142501. The reversal of 142470 is 74241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142470.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 702 + ... + 881.

It is an arithmetic number, because the mean of its divisors is an integer number (15444).

2142470 is an apocalyptic number.

142470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142470 is an abundant number, since it is smaller than the sum of its proper divisors (228186).

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

142470 is a wasteful number, since it uses less digits than its factorization.

142470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1593 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 142470 is about 377.4519837012. The cubic root of 142470 is about 52.2285306666.

The spelling of 142470 in words is "one hundred forty-two thousand, four hundred seventy", and thus it is an iban number.

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1583 3166 4749 7915 9498 14247 15830 23745 28494 47490 71235 142470