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2158280430 = 23571942681
BaseRepresentation
bin1000000010100100…
…1011111011101110
312120102012000011020
42000221023323232
513410004433210
6554055235010
7104325036525
oct20051137356
95512160136
102158280430
11a08325039
12502978a66
132851b5217
141668db4bc
15c972a770
hex80a4beee

2158280430 has 16 divisors (see below), whose sum is σ = 5179873104. Its totient is φ = 575541440.

The previous prime is 2158280401. The next prime is 2158280431. The reversal of 2158280430 is 340828512.

2158280430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2158280391 and 2158280400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158280431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35971311 + ... + 35971370.

It is an arithmetic number, because the mean of its divisors is an integer number (323742069).

Almost surely, 22158280430 is an apocalyptic number.

2158280430 is an abundant number, since it is smaller than the sum of its proper divisors (3021592674).

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

2158280430 is a wasteful number, since it uses less digits than its factorization.

2158280430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71942691.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2158280430 is about 46457.2968434454. The cubic root of 2158280430 is about 1292.3176950566.

The spelling of 2158280430 in words is "two billion, one hundred fifty-eight million, two hundred eighty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 71942681 143885362 215828043 359713405 431656086 719426810 1079140215 2158280430