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143970 = 2354799
BaseRepresentation
bin100011001001100010
321022111020
4203021202
514101340
63030310
71136511
oct431142
9238436
10143970
1199192
126b396
13506b8
143a678
152c9d0
hex23262

143970 has 16 divisors (see below), whose sum is σ = 345600. Its totient is φ = 38384.

The previous prime is 143953. The next prime is 143971. The reversal of 143970 is 79341.

It is a self number, because there is not a number n which added to its sum of digits gives 143970.

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 143970.

It is not an unprimeable number, because it can be changed into a prime (143971) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2370 + ... + 2429.

It is an arithmetic number, because the mean of its divisors is an integer number (21600).

2143970 is an apocalyptic number.

143970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143970 is an abundant number, since it is smaller than the sum of its proper divisors (201630).

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

143970 is a wasteful number, since it uses less digits than its factorization.

143970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4809.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 143970 is about 379.4337886905. The cubic root of 143970 is about 52.4111877128.

The spelling of 143970 in words is "one hundred forty-three thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 4799 9598 14397 23995 28794 47990 71985 143970