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2154250134 = 233192099659
BaseRepresentation
bin1000000001100111…
…0011111110010110
312120010121020122000
42000121303332112
513402442001014
6553433020130
7104245552431
oct20031637626
95503536560
102154250134
11a06022013
12501554646
1328440392a
1416616c818
15c91d1509
hex80673f96

2154250134 has 32 divisors (see below), whose sum is σ = 5039184000. Its totient is φ = 680289192.

The previous prime is 2154250117. The next prime is 2154250139. The reversal of 2154250134 is 4310524512.

Adding to 2154250134 its reverse (4310524512), we get a palindrome (6464774646).

2154250134 is a `hidden beast` number, since 2 + 154 + 2 + 501 + 3 + 4 = 666.

2154250134 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2154250098 and 2154250107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154250139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048804 + ... + 1050855.

It is an arithmetic number, because the mean of its divisors is an integer number (157474500).

Almost surely, 22154250134 is an apocalyptic number.

2154250134 is an abundant number, since it is smaller than the sum of its proper divisors (2884933866).

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

2154250134 is a wasteful number, since it uses less digits than its factorization.

2154250134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099689 (or 2099683 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2154250134 is about 46413.9002239631. The cubic root of 2154250134 is about 1291.5127844836.

The spelling of 2154250134 in words is "two billion, one hundred fifty-four million, two hundred fifty thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 171 342 513 1026 2099659 4199318 6298977 12597954 18896931 37793862 39893521 56690793 79787042 113381586 119680563 239361126 359041689 718083378 1077125067 2154250134