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101122420420 = 22574715368149
BaseRepresentation
bin101111000101101011…
…1011010111011000100
3100200000101200012121101
41132023113122323010
53124044314423140
6114242140225444
710206623251150
oct1361327327304
9320011605541
10101122420420
1139981a7418a
121772183b284
1396c7210438
144c74158060
15296ca4d99a
hex178b5daec4

101122420420 has 48 divisors (see below), whose sum is σ = 247857523200. Its totient is φ = 33932870784.

The previous prime is 101122420403. The next prime is 101122420423. The reversal of 101122420420 is 24024221101.

It is not an unprimeable number, because it can be changed into a prime (101122420423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7677495 + ... + 7690654.

It is an arithmetic number, because the mean of its divisors is an integer number (5163698400).

Almost surely, 2101122420420 is an apocalyptic number.

101122420420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101122420420 is an abundant number, since it is smaller than the sum of its proper divisors (146735102780).

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

101122420420 is a wasteful number, since it uses less digits than its factorization.

101122420420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15368212 (or 15368210 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 101122420420 its reverse (24024221101), we get a palindrome (125146641521).

The spelling of 101122420420 in words is "one hundred one billion, one hundred twenty-two million, four hundred twenty thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 47 70 94 140 188 235 329 470 658 940 1316 1645 3290 6580 15368149 30736298 61472596 76840745 107577043 153681490 215154086 307362980 430308172 537885215 722303003 1075770430 1444606006 2151540860 2889212012 3611515015 5056121021 7223030030 10112242042 14446060060 20224484084 25280605105 50561210210 101122420420