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101000112220 = 22572195424281
BaseRepresentation
bin101111000010000010…
…0110110100001011100
3100122200212112022022001
41132010010312201130
53123322012042340
6114222050532044
710203606534400
oct1360404664134
9318625468261
10101000112220
1139919a26227
12176a8897024
1396a7a88a17
144c61bdb100
152961e3e29a
hex178413685c

101000112220 has 72 divisors (see below), whose sum is σ = 259714622160. Its totient is φ = 32806045440.

The previous prime is 101000112203. The next prime is 101000112229. The reversal of 101000112220 is 22211000101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 101000112197 and 101000112206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101000112229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2693521 + ... + 2730760.

It is an arithmetic number, because the mean of its divisors is an integer number (3607147530).

Almost surely, 2101000112220 is an apocalyptic number.

101000112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101000112220 is an abundant number, since it is smaller than the sum of its proper divisors (158714509940).

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

101000112220 is a wasteful number, since it uses less digits than its factorization.

101000112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5424323 (or 5424314 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101000112220 its reverse (22211000101), we get a palindrome (123211112321).

The spelling of 101000112220 in words is "one hundred one billion, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 49 70 76 95 98 133 140 190 196 245 266 380 490 532 665 931 980 1330 1862 2660 3724 4655 9310 18620 5424281 10848562 21697124 27121405 37969967 54242810 75939934 103061339 108485620 151879868 189849835 206122678 265789769 379699670 412245356 515306695 531579538 721429373 759399340 1030613390 1063159076 1328948845 1442858746 2061226780 2657897690 2885717492 3607146865 5050005611 5315795380 7214293730 10100011222 14428587460 20200022444 25250028055 50500056110 101000112220