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2303040240 = 243253198667
BaseRepresentation
bin1000100101000101…
…1001101011110000
312221111120120021200
42021101121223300
514204034241430
61020310051200
7111033343014
oct21121315360
95844516250
102303040240
11a82008246
12543349b00
132a919ac07
1417bc20544
15d72c2460
hex89459af0

2303040240 has 60 divisors (see below), whose sum is σ = 7734379224. Its totient is φ = 614143872.

The previous prime is 2303040239. The next prime is 2303040263. The reversal of 2303040240 is 420403032.

2303040240 is a `hidden beast` number, since 230 + 30 + 402 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1598614 + ... + 1600053.

Almost surely, 22303040240 is an apocalyptic number.

2303040240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2303040240 is an abundant number, since it is smaller than the sum of its proper divisors (5431338984).

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

2303040240 is a wasteful number, since it uses less digits than its factorization.

2303040240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198686 (or 3198677 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 2303040240 is about 47990.0014586372. The cubic root of 2303040240 is about 1320.5874795442.

Adding to 2303040240 its reverse (420403032), we get a palindrome (2723443272).

The spelling of 2303040240 in words is "two billion, three hundred three million, forty thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 3198667 6397334 9596001 12794668 15993335 19192002 25589336 28788003 31986670 38384004 47980005 51178672 57576006 63973340 76768008 95960010 115152012 127946680 143940015 153536016 191920020 230304024 255893360 287880030 383840040 460608048 575760060 767680080 1151520120 2303040240