Search a number
-
+
10222031220 = 2235237407269
BaseRepresentation
bin10011000010100011…
…11101000101110100
3222101101112222200220
421201101331011310
5131413314444340
64410153334340
7511211555202
oct114121750564
928341488626
1010222031220
114376085395
121b934073b0
13c6b9b95ab
146cd83c072
153ec619ed0
hex26147d174

10222031220 has 48 divisors (see below), whose sum is σ = 29866112640. Its totient is φ = 2607358336.

The previous prime is 10222031219. The next prime is 10222031297. The reversal of 10222031220 is 2213022201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10222031220.

It is a congruent number.

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, 3702255 + ... + 3705014.

It is an arithmetic number, because the mean of its divisors is an integer number (622210680).

Almost surely, 210222031220 is an apocalyptic number.

10222031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222031220 is an abundant number, since it is smaller than the sum of its proper divisors (19644081420).

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

10222031220 is a wasteful number, since it uses less digits than its factorization.

10222031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407304 (or 7407302 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10222031220 its reverse (2213022201), we get a palindrome (12435053421).

The spelling of 10222031220 in words is "ten billion, two hundred twenty-two million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 345 460 690 1380 7407269 14814538 22221807 29629076 37036345 44443614 74072690 88887228 111109035 148145380 170367187 222218070 340734374 444436140 511101561 681468748 851835935 1022203122 1703671870 2044406244 2555507805 3407343740 5111015610 10222031220