Search a number
-
+
1242040054 = 25379831787
BaseRepresentation
bin100101000001000…
…0000011011110110
310012120010011122111
41022002000123312
510020430240204
6323125121234
742531111013
oct11202003366
93176104574
101242040054
11588110092
122a7b5921a
1316a423758
14bad5470a
1574091d04
hex4a0806f6

1242040054 has 32 divisors (see below), whose sum is σ = 1946488320. Its totient is φ = 594009312.

The previous prime is 1242040049. The next prime is 1242040069. The reversal of 1242040054 is 4500402421.

It is a happy number.

It is a super-3 number, since 3×12420400543 (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694149 + ... + 695935.

It is an arithmetic number, because the mean of its divisors is an integer number (60827760).

Almost surely, 21242040054 is an apocalyptic number.

1242040054 is a deficient number, since it is larger than the sum of its proper divisors (704448266).

1242040054 is a wasteful number, since it uses less digits than its factorization.

1242040054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1242040054 is about 35242.5886393154. The cubic root of 1242040054 is about 1074.9259163657.

Adding to 1242040054 its reverse (4500402421), we get a palindrome (5742442475).

The spelling of 1242040054 in words is "one billion, two hundred forty-two million, forty thousand, fifty-four".

Divisors: 1 2 53 79 83 106 158 166 1787 3574 4187 4399 6557 8374 8798 13114 94711 141173 148321 189422 282346 296642 347521 695042 7482169 7861013 11717359 14964338 15722026 23434718 621020027 1242040054