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143620942 = 2170942019
BaseRepresentation
bin10001000111101…
…11101101001110
3101000020200220011
420203313231032
5243231332232
622130143434
73362520643
oct1043675516
9330220804
10143620942
11740855a3
1240121b7a
13239a750a
1415107dca
15c91e547
hex88f7b4e

143620942 has 8 divisors (see below), whose sum is σ = 215562600. Its totient is φ = 71766744.

The previous prime is 143620891. The next prime is 143620979. The reversal of 143620942 is 249026341.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17592 + ... + 24427.

It is an arithmetic number, because the mean of its divisors is an integer number (26945325).

Almost surely, 2143620942 is an apocalyptic number.

143620942 is a deficient number, since it is larger than the sum of its proper divisors (71941658).

143620942 is a wasteful number, since it uses less digits than its factorization.

143620942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43730.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 143620942 is about 11984.1955090861. The cubic root of 143620942 is about 523.6879612780.

The spelling of 143620942 in words is "one hundred forty-three million, six hundred twenty thousand, nine hundred forty-two".

Divisors: 1 2 1709 3418 42019 84038 71810471 143620942