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20310412442 = 2371420719319
BaseRepresentation
bin10010111010100110…
…000100110010011010
31221102110121212001212
4102322212010302122
5313043431144232
613155214343122
71316211441305
oct227246046232
957373555055
1020310412442
118682775531
123b29abaaa2
131bb8aacc38
14da9609b3c
157dd134eb2
hex4ba984c9a

20310412442 has 16 divisors (see below), whose sum is σ = 31292835840. Its totient is φ = 9879534288.

The previous prime is 20310412429. The next prime is 20310412477. The reversal of 20310412442 is 24421401302.

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, 1041659 + ... + 1060977.

It is an arithmetic number, because the mean of its divisors is an integer number (1955802240).

Almost surely, 220310412442 is an apocalyptic number.

20310412442 is a deficient number, since it is larger than the sum of its proper divisors (10982423398).

20310412442 is a wasteful number, since it uses less digits than its factorization.

20310412442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33565.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20310412442 its reverse (24421401302), we get a palindrome (44731813744).

The spelling of 20310412442 in words is "twenty billion, three hundred ten million, four hundred twelve thousand, four hundred forty-two".

Divisors: 1 2 37 74 14207 19319 28414 38638 525659 714803 1051318 1429606 274465033 548930066 10155206221 20310412442