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20143245526 = 210071622763
BaseRepresentation
bin10010110000101000…
…011000100011010110
31220222211001220011121
4102300220120203112
5312223132324101
613130443354154
71312111522225
oct226050304326
956884056147
1020143245526
1185a7378558
123aa1b2295a
131b902802c1
14d91332cbc
157cd6140a1
hex4b0a188d6

20143245526 has 4 divisors (see below), whose sum is σ = 30214868292. Its totient is φ = 10071622762.

The previous prime is 20143245491. The next prime is 20143245533. The reversal of 20143245526 is 62554234102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62554234102 = 231277117051.

It is a junction number, because it is equal to n+sod(n) for n = 20143245491 and 20143245500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5035811380 + ... + 5035811383.

It is an arithmetic number, because the mean of its divisors is an integer number (7553717073).

Almost surely, 220143245526 is an apocalyptic number.

20143245526 is a deficient number, since it is larger than the sum of its proper divisors (10071622766).

20143245526 is a wasteful number, since it uses less digits than its factorization.

20143245526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10071622765.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 20143245526 its reverse (62554234102), we get a palindrome (82697479628).

The spelling of 20143245526 in words is "twenty billion, one hundred forty-three million, two hundred forty-five thousand, five hundred twenty-six".

Divisors: 1 2 10071622763 20143245526