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20030230000 = 245411211863
BaseRepresentation
bin10010101001111001…
…010000110111110000
31220200221102010000101
4102221321100313300
5312010214330000
613111325202144
71306240101004
oct225171206760
956627363011
1020030230000
1185495a72a0
123a70100354
131b72a30501
14d80314704
157c373ce6a
hex4a9e50df0

20030230000 has 200 divisors, whose sum is σ = 53216165376. Its totient is φ = 7240800000.

The previous prime is 20030229971. The next prime is 20030230021. The reversal of 20030230000 is 3203002.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×200302300002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23209569 + ... + 23210431.

Almost surely, 220030230000 is an apocalyptic number.

20030230000 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 20030230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26608082688).

20030230000 is an abundant number, since it is smaller than the sum of its proper divisors (33185935376).

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

20030230000 is a wasteful number, since it uses less digits than its factorization.

20030230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 10.

Adding to 20030230000 its reverse (3203002), we get a palindrome (20033433002).

The spelling of 20030230000 in words is "twenty billion, thirty million, two hundred thirty thousand".