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2026789128 = 23377131967
BaseRepresentation
bin111100011001110…
…0101100100001000
312020020202120000000
41320303211210020
513122324223003
6533041043000
7101140265130
oct17063454410
95206676000
102026789128
11950084741
12486926460
13263b96a10
1415326dac0
15bce051a3
hex78ce5908

2026789128 has 512 divisors, whose sum is σ = 7494144000. Its totient is φ = 498845952.

The previous prime is 2026789103. The next prime is 2026789129. The reversal of 2026789128 is 8219876202.

It is not an unprimeable number, because it can be changed into a prime (2026789129) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 30250551 + ... + 30250617.

It is an arithmetic number, because the mean of its divisors is an integer number (14637000).

Almost surely, 22026789128 is an apocalyptic number.

2026789128 is a gapful number since it is divisible by the number (28) 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 2026789128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3747072000).

2026789128 is an abundant number, since it is smaller than the sum of its proper divisors (5467354872).

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

2026789128 is a wasteful number, since it uses less digits than its factorization.

2026789128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 2026789128 is about 45019.8748110210. The cubic root of 2026789128 is about 1265.5214830890.

The spelling of 2026789128 in words is "two billion, twenty-six million, seven hundred eighty-nine thousand, one hundred twenty-eight".