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142550322031 = 1318169603523
BaseRepresentation
bin1000010011000010101…
…0010100101101101111
3111121221120120122212201
42010300222110231233
54313420340301111
6145253044042331
713204346513335
oct2046052245557
9447846518781
10142550322031
1155500a388a7
12237639933a7
131059a0602a0
146c8421bb55
153a94a8c6c1
hex2130a94b6f

142550322031 has 8 divisors (see below), whose sum is σ = 153524435120. Its totient is φ = 131577452352.

The previous prime is 142550322029. The next prime is 142550322113. The reversal of 142550322031 is 130223055241.

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

It is a cyclic number.

It is not a de Polignac number, because 142550322031 - 21 = 142550322029 is a prime.

It is a super-2 number, since 2×1425503220312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142550322331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65565 + ... + 537958.

It is an arithmetic number, because the mean of its divisors is an integer number (19190554390).

Almost surely, 2142550322031 is an apocalyptic number.

142550322031 is a deficient number, since it is larger than the sum of its proper divisors (10974113089).

142550322031 is a wasteful number, since it uses less digits than its factorization.

142550322031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621705.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 142550322031 its reverse (130223055241), we get a palindrome (272773377272).

The spelling of 142550322031 in words is "one hundred forty-two billion, five hundred fifty million, three hundred twenty-two thousand, thirty-one".

Divisors: 1 13 18169 236197 603523 7845799 10965409387 142550322031