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20122203032430 = 23510953471150847
BaseRepresentation
bin1001001001101000100001…
…10000111000101101101110
32122020122220221000202111220
410210310100300320231232
510114140232434014210
6110444002405124210
74144531643453232
oct444642060705556
978218827022456
1020122203032430
116458862033014
12230b9990b9666
13b2c691a21a95
144d7cc3dd05c2
1524d658456c70
hex124d10c38b6e

20122203032430 has 64 divisors (see below), whose sum is σ = 48745502023680. Its totient is φ = 5315693226624.

The previous prime is 20122203032417. The next prime is 20122203032441. The reversal of 20122203032430 is 3423030222102.

It is a self number, because there is not a number n which added to its sum of digits gives 20122203032430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16909267 + ... + 18060113.

It is an arithmetic number, because the mean of its divisors is an integer number (761648469120).

Almost surely, 220122203032430 is an apocalyptic number.

20122203032430 is an abundant number, since it is smaller than the sum of its proper divisors (28623298991250).

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

20122203032430 is a wasteful number, since it uses less digits than its factorization.

20122203032430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156313.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20122203032430 its reverse (3423030222102), we get a palindrome (23545233254532).

The spelling of 20122203032430 in words is "twenty trillion, one hundred twenty-two billion, two hundred three million, thirty-two thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 109 218 327 545 654 1090 1635 3270 5347 10694 16041 26735 32082 53470 80205 160410 582823 1150847 1165646 1748469 2301694 2914115 3452541 3496938 5754235 5828230 6905082 8742345 11508470 17262705 17484690 34525410 125442323 250884646 376326969 627211615 752653938 1254423230 1881634845 3763269690 6153578909 12307157818 18460736727 30767894545 36921473454 61535789090 92303683635 184607367270 670740101081 1341480202162 2012220303243 3353700505405 4024440606486 6707401010810 10061101516215 20122203032430