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20513131030822 = 2101501101048911
BaseRepresentation
bin1001010101000000101011…
…11000110110100100100110
32200122000222101000200212011
410222200111320312210212
510142041343020441242
6111343334032544434
74215011336562043
oct452402570664446
980560871020764
1020513131030822
11659962a766321
1223736ba0b211a
13b5a4c29c0221
1450cbab3981ca
152588d869ed17
hex12a815e36926

20513131030822 has 8 divisors (see below), whose sum is σ = 30769999997472. Its totient is φ = 10256464365000.

The previous prime is 20513131030793. The next prime is 20513131030849. The reversal of 20513131030822 is 22803013131502.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50321454 + ... + 50727457.

It is an arithmetic number, because the mean of its divisors is an integer number (3846249999684).

Almost surely, 220513131030822 is an apocalyptic number.

20513131030822 is a deficient number, since it is larger than the sum of its proper divisors (10256868966650).

20513131030822 is a wasteful number, since it uses less digits than its factorization.

20513131030822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101150414.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 20513131030822 in words is "twenty trillion, five hundred thirteen billion, one hundred thirty-one million, thirty thousand, eight hundred twenty-two".

Divisors: 1 2 101501 203002 101048911 202097822 10256565515411 20513131030822