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20415520411141 = 187329567368651
BaseRepresentation
bin1001010010001010110111…
…10101111000111000000101
32200021201000201102110012211
410221011123311320320011
510133441441211124031
6111230432142343421
74204654425156652
oct451053365707005
980251021373184
1020415520411141
1165611a0049aa9
1223587b858ab71
13b5123821b7bb
1450818b7d0c29
152560c40debb1
hex12915bd78e05

20415520411141 has 8 divisors (see below), whose sum is σ = 20427166577664. Its totient is φ = 20403875044800.

The previous prime is 20415520411123. The next prime is 20415520411159. The reversal of 20415520411141 is 14111402551402.

It is an interprime number because it is at equal distance from previous prime (20415520411123) and next prime (20415520411159).

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 20415520411141 - 223 = 20415512022533 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 (20415520411441) 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, 55194666 + ... + 55563316.

It is an arithmetic number, because the mean of its divisors is an integer number (2553395822208).

Almost surely, 220415520411141 is an apocalyptic number.

It is an amenable number.

20415520411141 is a deficient number, since it is larger than the sum of its proper divisors (11646166523).

20415520411141 is a wasteful number, since it uses less digits than its factorization.

20415520411141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400091.

The product of its (nonzero) digits is 6400, while the sum is 31.

Adding to 20415520411141 its reverse (14111402551402), we get a palindrome (34526922962543).

The spelling of 20415520411141 in words is "twenty trillion, four hundred fifteen billion, five hundred twenty million, four hundred eleven thousand, one hundred forty-one".

Divisors: 1 1873 29567 368651 55378991 690483323 10899904117 20415520411141