Search a number
-
+
2154054 = 23751287
BaseRepresentation
bin1000001101111001000110
311001102210210
420031321012
51022412204
6114100250
724211020
oct10157106
94042723
102154054
111241411
1287a686
135a55b6
14401010
152c8389
hex20de46

2154054 has 16 divisors (see below), whose sum is σ = 4923648. Its totient is φ = 615432.

The previous prime is 2154043. The next prime is 2154059. The reversal of 2154054 is 4504512.

2154054 = T781 + T782 + ... + T787.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2154054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154059) 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, 25602 + ... + 25685.

It is an arithmetic number, because the mean of its divisors is an integer number (307728).

22154054 is an apocalyptic number.

2154054 is an abundant number, since it is smaller than the sum of its proper divisors (2769594).

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

2154054 is a wasteful number, since it uses less digits than its factorization.

2154054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51299.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2154054 is about 1467.6695813432. The cubic root of 2154054 is about 129.1473587974.

Adding to 2154054 its reverse (4504512), we get a palindrome (6658566).

The spelling of 2154054 in words is "two million, one hundred fifty-four thousand, fifty-four".

Divisors: 1 2 3 6 7 14 21 42 51287 102574 153861 307722 359009 718018 1077027 2154054