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2212223040 = 26325768133
BaseRepresentation
bin1000001111011011…
…1101100001000000
312201011200120111200
42003312331201000
514012312114130
61003303341200
7105551404566
oct20366754100
95634616450
102212223040
11a35818a05
12518a51800
13293421021
1416db3da36
15ce333760
hex83dbd840

2212223040 has 84 divisors (see below), whose sum is σ = 7609135404. Its totient is φ = 589925376.

The previous prime is 2212223009. The next prime is 2212223059. The reversal of 2212223040 is 403222122.

It can be written as a sum of positive squares in 2 ways, for example, as 685601856 + 1526621184 = 26184^2 + 39072^2 .

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

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, 381187 + ... + 386946.

Almost surely, 22212223040 is an apocalyptic number.

2212223040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212223040 is an abundant number, since it is smaller than the sum of its proper divisors (5396912364).

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

2212223040 is a wasteful number, since it uses less digits than its factorization.

2212223040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768156 (or 768143 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2212223040 is about 47034.2751618434. The cubic root of 2212223040 is about 1302.9956636124.

Adding to 2212223040 its reverse (403222122), we get a palindrome (2615445162).

The spelling of 2212223040 in words is "two billion, two hundred twelve million, two hundred twenty-three thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 320 360 480 576 720 960 1440 2880 768133 1536266 2304399 3072532 3840665 4608798 6145064 6913197 7681330 9217596 11521995 12290128 13826394 15362660 18435192 23043990 24580256 27652788 30725320 34565985 36870384 46087980 49160512 55305576 61450640 69131970 73740768 92175960 110611152 122901280 138263940 147481536 184351920 221222304 245802560 276527880 368703840 442444608 553055760 737407680 1106111520 2212223040