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1240322141 = 29265716097
BaseRepresentation
bin100100111101101…
…1101000001011101
310012102212220010002
41021323131001131
510020010302031
6323024224045
742510364352
oct11173350135
93172786102
101240322141
11587147423
122a746b025
13169c71836
14baa28629
1573d52ccb
hex49edd05d

1240322141 has 8 divisors (see below), whose sum is σ = 1283654520. Its totient is φ = 1197027328.

The previous prime is 1240322129. The next prime is 1240322233. The reversal of 1240322141 is 1412230421.

It can be written as a sum of positive squares in 4 ways, for example, as 306775225 + 933546916 = 17515^2 + 30554^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240322141 - 26 = 1240322077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240322101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69005 + ... + 85101.

It is an arithmetic number, because the mean of its divisors is an integer number (160456815).

Almost surely, 21240322141 is an apocalyptic number.

It is an amenable number.

1240322141 is a deficient number, since it is larger than the sum of its proper divisors (43332379).

1240322141 is a wasteful number, since it uses less digits than its factorization.

1240322141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18783.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1240322141 is about 35218.2075211104. The cubic root of 1240322141 is about 1074.4300973472.

Adding to 1240322141 its reverse (1412230421), we get a palindrome (2652552562).

The spelling of 1240322141 in words is "one billion, two hundred forty million, three hundred twenty-two thousand, one hundred forty-one".

Divisors: 1 29 2657 16097 77053 466813 42769729 1240322141