Search a number
-
+
20122401020 = 2255939169409
BaseRepresentation
bin10010101111011000…
…110111100011111100
31220221100211212212212
4102233120313203330
5312202313313040
613124420515552
71311436405121
oct225730674374
956840755785
1020122401020
118596630797
123a96b4bbb8
131b88b62687
14d8c668748
157cb897d65
hex4af6378fc

20122401020 has 24 divisors (see below), whose sum is σ = 42264406800. Its totient is φ = 8047557632.

The previous prime is 20122400983. The next prime is 20122401031. The reversal of 20122401020 is 2010422102.

It is a super-2 number, since 2×201224010202 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20122400986 and 20122401004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34076 + ... + 203484.

It is an arithmetic number, because the mean of its divisors is an integer number (1761016950).

Almost surely, 220122401020 is an apocalyptic number.

20122401020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122401020 is an abundant number, since it is smaller than the sum of its proper divisors (22142005780).

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

20122401020 is a wasteful number, since it uses less digits than its factorization.

20122401020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175357 (or 175355 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20122401020 its reverse (2010422102), we get a palindrome (22132823122).

The spelling of 20122401020 in words is "twenty billion, one hundred twenty-two million, four hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 5939 11878 23756 29695 59390 118780 169409 338818 677636 847045 1694090 3388180 1006120051 2012240102 4024480204 5030600255 10061200510 20122401020