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142115352551 = 4159198729567
BaseRepresentation
bin1000010001011010111…
…1000010111111100111
3111120211021002220220222
42010112233002333213
54312023012240201
6145141545114555
713160515364624
oct2042657027747
9446737086828
10142115352551
11552a8458897
1223662188a5b
131052abc6ab3
146c4255334b
153a6b7bc91b
hex2116bc2fe7

142115352551 has 16 divisors (see below), whose sum is σ = 148128583680. Its totient is φ = 136225936320.

The previous prime is 142115352539. The next prime is 142115352583. The reversal of 142115352551 is 155253511241.

It is a cyclic number.

It is not a de Polignac number, because 142115352551 - 218 = 142115090407 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 (142115352151) 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, 4791770 + ... + 4821336.

It is an arithmetic number, because the mean of its divisors is an integer number (9258036480).

Almost surely, 2142115352551 is an apocalyptic number.

142115352551 is a deficient number, since it is larger than the sum of its proper divisors (6013231129).

142115352551 is a wasteful number, since it uses less digits than its factorization.

142115352551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31654.

The product of its digits is 30000, while the sum is 35.

Adding to 142115352551 its reverse (155253511241), we get a palindrome (297368863792).

The spelling of 142115352551 in words is "one hundred forty-two billion, one hundred fifteen million, three hundred fifty-two thousand, five hundred fifty-one".

Divisors: 1 41 59 1987 2419 29567 81467 117233 1212247 1744453 4806553 58749629 71522573 2408734789 3466228111 142115352551