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142452420143 = 11194011699727
BaseRepresentation
bin1000010010101011010…
…0110110111000101111
3111121200202100201201212
42010222310312320233
54313220304421033
6145235225425035
713202050410155
oct2045264667057
9447622321655
10142452420143
115546074a750
122373703b17b
13105829a2787
146c752153d5
153a8b19e748
hex212ad36e2f

142452420143 has 16 divisors (see below), whose sum is σ = 163989757440. Its totient is φ = 122380272000.

The previous prime is 142452420107. The next prime is 142452420157. The reversal of 142452420143 is 341024254241.

It is a cyclic number.

It is not a de Polignac number, because 142452420143 - 210 = 142452419119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142452420163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766055 + ... + 933672.

It is an arithmetic number, because the mean of its divisors is an integer number (10249359840).

Almost surely, 2142452420143 is an apocalyptic number.

142452420143 is a deficient number, since it is larger than the sum of its proper divisors (21537337297).

142452420143 is a wasteful number, since it uses less digits than its factorization.

142452420143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700158.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 142452420143 its reverse (341024254241), we get a palindrome (483476674384).

The spelling of 142452420143 in words is "one hundred forty-two billion, four hundred fifty-two million, four hundred twenty thousand, one hundred forty-three".

Divisors: 1 11 19 209 401 4411 7619 83809 1699727 18696997 32294813 355242943 681590527 7497495797 12950220013 142452420143