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2145215411041 = 37123746870489
BaseRepresentation
bin11111001101111000110…
…011010111001101100001
321121002011202021001200011
4133031320303113031201
5240121400121123131
64321255351124521
7310662303063253
oct37157063271541
97532152231604
102145215411041
117578651a048a
122a7910373741
131273a67a69b1
1475b86a13cd3
153ac06a060b1
hex1f378cd7361

2145215411041 has 8 divisors (see below), whose sum is σ = 2204975331560. Its totient is φ = 2085549234048.

The previous prime is 2145215411011. The next prime is 2145215411047. The reversal of 2145215411041 is 1401145125412.

It can be written as a sum of positive squares in 4 ways, for example, as 1495474626816 + 649740784225 = 1222896^2 + 806065^2 .

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 2145215411041 - 211 = 2145215408993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145215410994 and 2145215411012.

It is not an unprimeable number, because it can be changed into a prime (2145215411047) 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, 23389476 + ... + 23481013.

It is an arithmetic number, because the mean of its divisors is an integer number (275621916445).

Almost surely, 22145215411041 is an apocalyptic number.

It is an amenable number.

2145215411041 is a deficient number, since it is larger than the sum of its proper divisors (59759920519).

2145215411041 is a wasteful number, since it uses less digits than its factorization.

2145215411041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46871763.

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

The spelling of 2145215411041 in words is "two trillion, one hundred forty-five billion, two hundred fifteen million, four hundred eleven thousand, forty-one".

Divisors: 1 37 1237 45769 46870489 1734208093 57978794893 2145215411041