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142650037520 = 2453799346933
BaseRepresentation
bin1000010011011010011…
…0101101010100010000
3111122012112012201210222
42010312212231110100
54314121402200040
6145311005212212
713210000212134
oct2046646552420
9448175181728
10142650037520
11555522555a1
1223791261068
13105b4904433
146c935773c4
153a9d6d7bb5
hex21369ad510

142650037520 has 40 divisors (see below), whose sum is σ = 331677133656. Its totient is φ = 57057297408.

The previous prime is 142650037513. The next prime is 142650037529. The reversal of 142650037520 is 25730056241.

It can be written as a sum of positive squares in 4 ways, for example, as 12447418624 + 130202618896 = 111568^2 + 360836^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (142650037529) 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, 3015974 + ... + 3062906.

Almost surely, 2142650037520 is an apocalyptic number.

142650037520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142650037520 is an abundant number, since it is smaller than the sum of its proper divisors (189027096136).

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

142650037520 is a wasteful number, since it uses less digits than its factorization.

142650037520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84939 (or 84933 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 142650037520 in words is "one hundred forty-two billion, six hundred fifty million, thirty-seven thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 37993 46933 75986 93866 151972 187732 189965 234665 303944 375464 379930 469330 607888 750928 759860 938660 1519720 1877320 3039440 3754640 1783125469 3566250938 7132501876 8915627345 14265003752 17831254690 28530007504 35662509380 71325018760 142650037520