Search a number
-
+
1242704061 = 32407933851
BaseRepresentation
bin100101000010010…
…0010100010111101
310012121100220111100
41022010202202331
510021113012221
6323151243313
742536544624
oct11204424275
93177326440
101242704061
11588523a55
122a8219539
1316a5c6a61
14bb0886bb
1574173926
hex4a1228bd

1242704061 has 12 divisors (see below), whose sum is σ = 1795510080. Its totient is φ = 828241800.

The previous prime is 1242704051. The next prime is 1242704077. The reversal of 1242704061 is 1604072421.

It is not a de Polignac number, because 1242704061 - 26 = 1242703997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242704051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19786 + ... + 53636.

It is an arithmetic number, because the mean of its divisors is an integer number (149625840).

Almost surely, 21242704061 is an apocalyptic number.

It is an amenable number.

1242704061 is a deficient number, since it is larger than the sum of its proper divisors (552806019).

1242704061 is a wasteful number, since it uses less digits than its factorization.

1242704061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37936 (or 37933 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1242704061 is about 35252.0079002601. The cubic root of 1242704061 is about 1075.1174376118.

Adding to 1242704061 its reverse (1604072421), we get a palindrome (2846776482).

The spelling of 1242704061 in words is "one billion, two hundred forty-two million, seven hundred four thousand, sixty-one".

Divisors: 1 3 9 4079 12237 33851 36711 101553 304659 138078229 414234687 1242704061