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20030310000 = 243254457487
BaseRepresentation
bin10010101001111001…
…100100011001110000
31220200221120011202100
4102221321210121300
5312010224410000
613111331020400
71306240553151
oct225171443160
956627504670
1020030310000
118549651408
123a7013a700
131b72a5aa4c
14d80335928
157c3756a00
hex4a9e64670

20030310000 has 300 divisors, whose sum is σ = 70346319472. Its totient is φ = 5318784000.

The previous prime is 20030309983. The next prime is 20030310029. The reversal of 20030310000 is 1303002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (300).

It is a super-2 number, since 2×200303100002 (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 41129757 + ... + 41130243.

Almost surely, 220030310000 is an apocalyptic number.

20030310000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20030310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35173159736).

20030310000 is an abundant number, since it is smaller than the sum of its proper divisors (50316009472).

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

20030310000 is a wasteful number, since it uses less digits than its factorization.

20030310000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

Adding to 20030310000 its reverse (1303002), we get a palindrome (20031613002).

The spelling of 20030310000 in words is "twenty billion, thirty million, three hundred ten thousand".