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20122750310 = 2513154790387
BaseRepresentation
bin10010101111011010…
…001100110101100110
31220221101111122000112
4102233122030311212
5312202411002220
613124432213022
71311442361345
oct225732146546
956841448015
1020122750310
11859684a163
123a9709a172
131b88c55660
14d8c719b5c
157cb9165c5
hex4af68cd66

20122750310 has 16 divisors (see below), whose sum is σ = 39007177776. Its totient is φ = 7429938528.

The previous prime is 20122750303. The next prime is 20122750313. The reversal of 20122750310 is 1305722102.

It is a happy number.

It is a super-2 number, since 2×201227503102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122750313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77395064 + ... + 77395323.

It is an arithmetic number, because the mean of its divisors is an integer number (2437948611).

Almost surely, 220122750310 is an apocalyptic number.

20122750310 is a deficient number, since it is larger than the sum of its proper divisors (18884427466).

20122750310 is a wasteful number, since it uses less digits than its factorization.

20122750310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154790407.

The product of its (nonzero) digits is 840, while the sum is 23.

The spelling of 20122750310 in words is "twenty billion, one hundred twenty-two million, seven hundred fifty thousand, three hundred ten".

Divisors: 1 2 5 10 13 26 65 130 154790387 309580774 773951935 1547903870 2012275031 4024550062 10061375155 20122750310