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1114231220 = 22555711561
BaseRepresentation
bin100001001101001…
…1101000110110100
32212122121210212222
41002122131012310
54240220344340
6302321501512
736416544344
oct10232350664
92778553788
101114231220
11521a55453
122711a1898
13149ac441b
14a7da4d24
1567c478b5
hex4269d1b4

1114231220 has 12 divisors (see below), whose sum is σ = 2339885604. Its totient is φ = 445692480.

The previous prime is 1114231213. The next prime is 1114231253. The reversal of 1114231220 is 221324111.

It can be written as a sum of positive squares in 2 ways, for example, as 348270244 + 765960976 = 18662^2 + 27676^2 .

It is a super-2 number, since 2×11142312202 = 2483022423245376800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27855761 + ... + 27855800.

It is an arithmetic number, because the mean of its divisors is an integer number (194990467).

Almost surely, 21114231220 is an apocalyptic number.

1114231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1114231220 is an abundant number, since it is smaller than the sum of its proper divisors (1225654384).

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

1114231220 is a wasteful number, since it uses less digits than its factorization.

1114231220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55711570 (or 55711568 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1114231220 is about 33380.1021568239. The cubic root of 1114231220 is about 1036.7127529659.

Adding to 1114231220 its reverse (221324111), we get a palindrome (1335555331).

The spelling of 1114231220 in words is "one billion, one hundred fourteen million, two hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 55711561 111423122 222846244 278557805 557115610 1114231220