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30422045280 = 25351137155723
BaseRepresentation
bin11100010101010010…
…111001001001100000
32220112011110000122210
4130111102321021200
5444301020422110
621550430002120
72124613055364
oct342522711140
986464400583
1030422045280
11119a14a6990
125a90346340
132b3a954a33
14168850b2a4
15bd0be4520
hex7154b9260

30422045280 has 192 divisors, whose sum is σ = 107367337728. Its totient is φ = 7175669760.

The previous prime is 30422045279. The next prime is 30422045287. The reversal of 30422045280 is 8254022403.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30422045287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117499 + ... + 273221.

It is an arithmetic number, because the mean of its divisors is an integer number (559204884).

Almost surely, 230422045280 is an apocalyptic number.

30422045280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30422045280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53683668864).

30422045280 is an abundant number, since it is smaller than the sum of its proper divisors (76945292448).

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

30422045280 is a wasteful number, since it uses less digits than its factorization.

30422045280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155789 (or 155781 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 30422045280 its reverse (8254022403), we get a palindrome (38676067683).

The spelling of 30422045280 in words is "thirty billion, four hundred twenty-two million, forty-five thousand, two hundred eighty".