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1240010220 = 2235127162731
BaseRepresentation
bin100100111101001…
…0000110111101100
310012102022001020110
41021322100313230
510014420311340
6323013420020
742504625101
oct11172206754
93172261213
101240010220
11586a54039
122a733a610
13169b92877
14ba986aa8
1573ce0680
hex49e90dec

1240010220 has 48 divisors (see below), whose sum is σ = 3499388928. Its totient is φ = 328063680.

The previous prime is 1240010179. The next prime is 1240010231. The reversal of 1240010220 is 220100421.

1240010220 is digitally balanced in base 4, 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 (12).

It is a junction number, because it is equal to n+sod(n) for n = 1240010196 and 1240010205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73746 + ... + 88985.

It is an arithmetic number, because the mean of its divisors is an integer number (72903936).

Almost surely, 21240010220 is an apocalyptic number.

1240010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240010220 is an abundant number, since it is smaller than the sum of its proper divisors (2259378708).

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

1240010220 is a wasteful number, since it uses less digits than its factorization.

1240010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162870 (or 162868 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1240010220 is about 35213.7788372677. The cubic root of 1240010220 is about 1074.3400225198.

Adding to 1240010220 its reverse (220100421), we get a palindrome (1460110641).

The spelling of 1240010220 in words is "one billion, two hundred forty million, ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 127 254 381 508 635 762 1270 1524 1905 2540 3810 7620 162731 325462 488193 650924 813655 976386 1627310 1952772 2440965 3254620 4881930 9763860 20666837 41333674 62000511 82667348 103334185 124001022 206668370 248002044 310002555 413336740 620005110 1240010220