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141240141640 = 23513271615657
BaseRepresentation
bin1000001110001010010…
…0011000011101001000
3111111120021020121021001
42003202210120131020
54303224434013030
6144515042224344
713130030252413
oct2034244303510
9444507217231
10141240141640
1154999417994
12234590550b4
131041b79c610
146b9c20ab7a
153a19a3acca
hex20e2918748

141240141640 has 32 divisors (see below), whose sum is σ = 342235729080. Its totient is φ = 52150205952.

The previous prime is 141240141529. The next prime is 141240141661. The reversal of 141240141640 is 46141042141.

It can be written as a sum of positive squares in 4 ways, for example, as 85414738564 + 55825403076 = 292258^2 + 236274^2 .

It is a super-2 number, since 2×1412401416402 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 141240141599 and 141240141608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135807309 + ... + 135808348.

Almost surely, 2141240141640 is an apocalyptic number.

141240141640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141240141640 is an abundant number, since it is smaller than the sum of its proper divisors (200995587440).

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

141240141640 is a wasteful number, since it uses less digits than its factorization.

141240141640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271615681 (or 271615677 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 141240141640 its reverse (46141042141), we get a palindrome (187381183781).

The spelling of 141240141640 in words is "one hundred forty-one billion, two hundred forty million, one hundred forty-one thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 271615657 543231314 1086462628 1358078285 2172925256 2716156570 3531003541 5432313140 7062007082 10864626280 14124014164 17655017705 28248028328 35310035410 70620070820 141240141640