Search a number
-
+
2801067420 = 2235232029759
BaseRepresentation
bin1010011011110100…
…1110010110011100
321020012200222010210
42212331032112130
521214033124140
61141540332420
7126261452214
oct24675162634
97205628123
102801067420
111208147458
126620a4110
13358412058
141c8021244
15115d9ad80
hexa6f4e59c

2801067420 has 48 divisors (see below), whose sum is σ = 8183992320. Its totient is φ = 714474816.

The previous prime is 2801067389. The next prime is 2801067427. The reversal of 2801067420 is 247601082.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801067427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1013500 + ... + 1016259.

It is an arithmetic number, because the mean of its divisors is an integer number (170499840).

Almost surely, 22801067420 is an apocalyptic number.

2801067420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2801067420 is an abundant number, since it is smaller than the sum of its proper divisors (5382924900).

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

2801067420 is a wasteful number, since it uses less digits than its factorization.

2801067420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029794 (or 2029792 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2801067420 is about 52925.1114311534. Note that the first 3 decimals coincide. The cubic root of 2801067420 is about 1409.6388290775.

The spelling of 2801067420 in words is "two billion, eight hundred one million, sixty-seven thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 345 460 690 1380 2029759 4059518 6089277 8119036 10148795 12178554 20297590 24357108 30446385 40595180 46684457 60892770 93368914 121785540 140053371 186737828 233422285 280106742 466844570 560213484 700266855 933689140 1400533710 2801067420