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2142200054 = 21071100027
BaseRepresentation
bin111111110101111…
…0110000011110110
312112021221001000202
41333223312003312
513341400400204
6552322440502
7104041254131
oct17753660366
95467831022
102142200054
119aa241675
124b9503132
13281a74bc7
14164713218
15c8100e1e
hex7faf60f6

2142200054 has 4 divisors (see below), whose sum is σ = 3213300084. Its totient is φ = 1071100026.

The previous prime is 2142200003. The next prime is 2142200069. The reversal of 2142200054 is 4500022412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2142199999 and 2142200035.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535550012 + ... + 535550015.

It is an arithmetic number, because the mean of its divisors is an integer number (803325021).

Almost surely, 22142200054 is an apocalyptic number.

2142200054 is a deficient number, since it is larger than the sum of its proper divisors (1071100030).

2142200054 is a wasteful number, since it uses less digits than its factorization.

2142200054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071100029.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2142200054 is about 46283.9070736255. The cubic root of 2142200054 is about 1289.1001985882.

Adding to 2142200054 its reverse (4500022412), we get a palindrome (6642222466).

The spelling of 2142200054 in words is "two billion, one hundred forty-two million, two hundred thousand, fifty-four".

Divisors: 1 2 1071100027 2142200054