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20003312214 = 23219569102793
BaseRepresentation
bin10010101000010010…
…100101001001010110
31220122001202112202100
4102220102211021112
5311431321442324
613104524222530
71305462230334
oct225022451126
956561675670
1020003312214
118535391596
123a6309aa46
131b6a297422
14d7a908b54
157c11c24c9
hex4a84a5256

20003312214 has 48 divisors (see below), whose sum is σ = 45702212400. Its totient is φ = 6305672448.

The previous prime is 20003312209. The next prime is 20003312239. The reversal of 20003312214 is 41221330002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143202 + ... + 245994.

It is an arithmetic number, because the mean of its divisors is an integer number (952129425).

Almost surely, 220003312214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20003312214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22851106200).

20003312214 is an abundant number, since it is smaller than the sum of its proper divisors (25698900186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20003312214 is a wasteful number, since it uses less digits than its factorization.

20003312214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103389 (or 103386 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20003312214 its reverse (41221330002), we get a palindrome (61224642216).

The spelling of 20003312214 in words is "twenty billion, three million, three hundred twelve thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 569 1138 1707 3414 5121 10242 10811 21622 32433 64866 97299 102793 194598 205586 308379 616758 925137 1850274 1953067 3906134 5859201 11718402 17577603 35155206 58489217 116978434 175467651 350935302 526402953 1052805906 1111295123 2222590246 3333885369 6667770738 10001656107 20003312214