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1121142340 = 22556057117
BaseRepresentation
bin100001011010011…
…0100011001000100
32220010121221011101
41002310310121010
54244003023330
6303125545444
736532360363
oct10264643104
92803557141
101121142340
1152594591a
12273575284
1314b374046
14a8c837da
15686604ca
hex42d34644

1121142340 has 12 divisors (see below), whose sum is σ = 2354398956. Its totient is φ = 448456928.

The previous prime is 1121142313. The next prime is 1121142343. The reversal of 1121142340 is 432411211.

It can be written as a sum of positive squares in 2 ways, for example, as 255488256 + 865654084 = 15984^2 + 29422^2 .

It is not an unprimeable number, because it can be changed into a prime (1121142343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28028539 + ... + 28028578.

It is an arithmetic number, because the mean of its divisors is an integer number (196199913).

Almost surely, 21121142340 is an apocalyptic number.

1121142340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121142340 is an abundant number, since it is smaller than the sum of its proper divisors (1233256616).

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

1121142340 is a wasteful number, since it uses less digits than its factorization.

1121142340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56057126 (or 56057124 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1121142340 is about 33483.4636798525. The cubic root of 1121142340 is about 1038.8517714546.

Adding to 1121142340 its reverse (432411211), we get a palindrome (1553553551).

The spelling of 1121142340 in words is "one billion, one hundred twenty-one million, one hundred forty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 56057117 112114234 224228468 280285585 560571170 1121142340