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10101233220 = 22351312950299
BaseRepresentation
bin10010110100001010…
…01001011001000100
3222001222020210222220
421122011021121010
5131141403430340
64350200252340
7505214031351
oct113205113104
928058223886
1010101233220
114313979031
121b5aa710b0
13c4c9733a0
146bb795628
153e1c07ed0
hex25a149644

10101233220 has 48 divisors (see below), whose sum is σ = 30459105600. Its totient is φ = 2486457216.

The previous prime is 10101233201. The next prime is 10101233227. The reversal of 10101233220 is 2233210101.

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 10101233220.

It is not an unprimeable number, because it can be changed into a prime (10101233227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6474370 + ... + 6475929.

It is an arithmetic number, because the mean of its divisors is an integer number (634564700).

Almost surely, 210101233220 is an apocalyptic number.

10101233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101233220 is an abundant number, since it is smaller than the sum of its proper divisors (20357872380).

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

10101233220 is a wasteful number, since it uses less digits than its factorization.

10101233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12950324 (or 12950322 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 10101233220 its reverse (2233210101), we get a palindrome (12334443321).

The spelling of 10101233220 in words is "ten billion, one hundred one million, two hundred thirty-three thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 12950299 25900598 38850897 51801196 64751495 77701794 129502990 155403588 168353887 194254485 259005980 336707774 388508970 505061661 673415548 777017940 841769435 1010123322 1683538870 2020246644 2525308305 3367077740 5050616610 10101233220