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2768198400 = 2832521117257
BaseRepresentation
bin1010010011111111…
…0101101100000000
321010220212001022200
42210333311230000
521132124322100
61134404033200
7125412204162
oct24477655400
97126761280
102768198400
1111a0637480
12653092800
13351674226
141c3906932
15113056e00
hexa4ff5b00

2768198400 has 648 divisors, whose sum is σ = 11476234224. Its totient is φ = 629145600.

The previous prime is 2768198359. The next prime is 2768198479. The reversal of 2768198400 is 48918672.

2768198400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10771072 + ... + 10771328.

It is an arithmetic number, because the mean of its divisors is an integer number (17710238).

Almost surely, 22768198400 is an apocalyptic number.

2768198400 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 2768198400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5738117112).

2768198400 is an abundant number, since it is smaller than the sum of its proper divisors (8708035824).

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

2768198400 is a wasteful number, since it uses less digits than its factorization.

2768198400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 295 counting only the distinct ones).

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

The square root of 2768198400 is about 52613.6712271630. The cubic root of 2768198400 is about 1404.1033357112.

The spelling of 2768198400 in words is "two billion, seven hundred sixty-eight million, one hundred ninety-eight thousand, four hundred".