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2723020380 = 2232515127891
BaseRepresentation
bin1010001001001101…
…1111111001011100
321000202211202201200
42202103133321130
521034043123010
61130111435500
7124323201633
oct24223377134
97022752650
102723020380
11117808a573
1263bb25b90
133451b6882
141bb90651a
1510e0d0cc0
hexa24dfe5c

2723020380 has 36 divisors (see below), whose sum is σ = 8259829032. Its totient is φ = 726138720.

The previous prime is 2723020367. The next prime is 2723020429. The reversal of 2723020380 is 830203272.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7563766 + ... + 7564125.

Almost surely, 22723020380 is an apocalyptic number.

2723020380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2723020380 is an abundant number, since it is smaller than the sum of its proper divisors (5536808652).

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

2723020380 is a wasteful number, since it uses less digits than its factorization.

2723020380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15127906 (or 15127901 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 2723020380 is about 52182.5677789049. The cubic root of 2723020380 is about 1396.4229054812.

The spelling of 2723020380 in words is "two billion, seven hundred twenty-three million, twenty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 15127891 30255782 45383673 60511564 75639455 90767346 136151019 151278910 181534692 226918365 272302038 302557820 453836730 544604076 680755095 907673460 1361510190 2723020380