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20020220010 = 2345719832239
BaseRepresentation
bin10010101001010011…
…000101000001101010
31220200020120112220000
4102221103011001222
5312000134020020
613110330443430
71306056030240
oct225123050152
956606515800
1020020220010
11854398a67a
123a68893576
131b7093723b
14d7cc6a790
157c2912090
hex4a94c506a

20020220010 has 320 divisors, whose sum is σ = 65569996800. Its totient is φ = 4281061248.

The previous prime is 20020219931. The next prime is 20020220023. The reversal of 20020220010 is 1002202002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20020219974 and 20020220001.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 8940471 + ... + 8942709.

It is an arithmetic number, because the mean of its divisors is an integer number (204906240).

Almost surely, 220020220010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020220010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32784998400).

20020220010 is an abundant number, since it is smaller than the sum of its proper divisors (45549776790).

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

20020220010 is a wasteful number, since it uses less digits than its factorization.

20020220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367 (or 2358 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20020220010 its reverse (1002202002), we get a palindrome (21022422012).

The spelling of 20020220010 in words is "twenty billion, twenty million, two hundred twenty thousand, ten".