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20122402103 = 110571819879
BaseRepresentation
bin10010101111011000…
…110111110100110111
31220221100211221100222
4102233120313310313
5312202313331403
613124420524555
71311436411226
oct225730676467
956840757328
1020122402103
118596631591
123a96b5075b
131b88b6300b
14d8c668cbd
157cb898338
hex4af637d37

20122402103 has 4 divisors (see below), whose sum is σ = 20124233040. Its totient is φ = 20120571168.

The previous prime is 20122402073. The next prime is 20122402133. The reversal of 20122402103 is 30120422102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20122402073) and next prime (20122402133).

It is a cyclic number.

It is not a de Polignac number, because 20122402103 - 234 = 2942532919 is a prime.

It is a super-2 number, since 2×201224021032 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122402133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898883 + ... + 920996.

It is an arithmetic number, because the mean of its divisors is an integer number (5031058260).

Almost surely, 220122402103 is an apocalyptic number.

20122402103 is a deficient number, since it is larger than the sum of its proper divisors (1830937).

20122402103 is a wasteful number, since it uses less digits than its factorization.

20122402103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830936.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20122402103 its reverse (30120422102), we get a palindrome (50242824205).

The spelling of 20122402103 in words is "twenty billion, one hundred twenty-two million, four hundred two thousand, one hundred three".

Divisors: 1 11057 1819879 20122402103