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2227123240 = 235371504813
BaseRepresentation
bin1000010010111111…
…0011010000101000
312202012201120201221
42010233303100220
514030120420430
61004554551424
7106122143446
oct20457632050
95665646657
102227123240
11a43175721
12521a38574
1329653a104
14171adbb96
15d07c857a
hex84bf3428

2227123240 has 32 divisors (see below), whose sum is σ = 5146463880. Its totient is φ = 866771712.

The previous prime is 2227123219. The next prime is 2227123253. The reversal of 2227123240 is 423217222.

It can be written as a sum of positive squares in 4 ways, for example, as 2025540036 + 201583204 = 45006^2 + 14198^2 .

It is a super-2 number, since 2×22271232402 = 9920155852296195200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750927 + ... + 753886.

Almost surely, 22227123240 is an apocalyptic number.

2227123240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2227123240 is an abundant number, since it is smaller than the sum of its proper divisors (2919340640).

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

2227123240 is a wasteful number, since it uses less digits than its factorization.

2227123240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504861 (or 1504857 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 2227123240 is about 47192.4065925865. The cubic root of 2227123240 is about 1305.9145177852.

The spelling of 2227123240 in words is "two billion, two hundred twenty-seven million, one hundred twenty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 37 40 74 148 185 296 370 740 1480 1504813 3009626 6019252 7524065 12038504 15048130 30096260 55678081 60192520 111356162 222712324 278390405 445424648 556780810 1113561620 2227123240