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101020000220 = 22553791206353
BaseRepresentation
bin101111000010101000…
…0101101111111011100
3100122202020221201111122
41132011100231333130
53123342110001340
6114224041110112
710204240556036
oct1360520557734
9318666851448
10101020000220
113992a17a397
12176b3488338
1396abc30179
144c646d6c56
152963a6bdb5
hex178542dfdc

101020000220 has 48 divisors (see below), whose sum is σ = 218880869760. Its totient is φ = 39143709696.

The previous prime is 101020000217. The next prime is 101020000307. The reversal of 101020000220 is 22000020101.

It is a junction number, because it is equal to n+sod(n) for n = 101020000198 and 101020000207.

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, 519437 + ... + 686916.

It is an arithmetic number, because the mean of its divisors is an integer number (4560018120).

Almost surely, 2101020000220 is an apocalyptic number.

101020000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101020000220 is an abundant number, since it is smaller than the sum of its proper divisors (117860869540).

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

101020000220 is a wasteful number, since it uses less digits than its factorization.

101020000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206494 (or 1206492 counting only the distinct ones).

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

Adding to 101020000220 its reverse (22000020101), we get a palindrome (123020020321).

The spelling of 101020000220 in words is "one hundred one billion, twenty million, two hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 53 79 106 158 212 265 316 395 530 790 1060 1580 4187 8374 16748 20935 41870 83740 1206353 2412706 4825412 6031765 12063530 24127060 63936709 95301887 127873418 190603774 255746836 319683545 381207548 476509435 639367090 953018870 1278734180 1906037740 5051000011 10102000022 20204000044 25255000055 50510000110 101020000220