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101021230220 = 2255051061511
BaseRepresentation
bin101111000010101010…
…1011010010010001100
3100122202100021012202012
41132011111122102030
53123342413331340
6114224123320352
710204254201041
oct1360525322214
9318670235665
10101021230220
113992a93a519
12176b39800b8
1396ac270c91
144c649371c8
152963c11565
hex178555a48c

101021230220 has 12 divisors (see below), whose sum is σ = 212144583504. Its totient is φ = 40408492080.

The previous prime is 101021230187. The next prime is 101021230241. The reversal of 101021230220 is 22032120101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101021230195 and 101021230204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525530736 + ... + 2525530775.

It is an arithmetic number, because the mean of its divisors is an integer number (17678715292).

Almost surely, 2101021230220 is an apocalyptic number.

101021230220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101021230220 is an abundant number, since it is smaller than the sum of its proper divisors (111123353284).

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

101021230220 is a wasteful number, since it uses less digits than its factorization.

101021230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051061520 (or 5051061518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 101021230220 its reverse (22032120101), we get a palindrome (123053350321).

The spelling of 101021230220 in words is "one hundred one billion, twenty-one million, two hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5051061511 10102123022 20204246044 25255307555 50510615110 101021230220