Search a number
-
+
1234212031 = 131814311217
BaseRepresentation
bin100100110010000…
…1001010010111111
310012000101110121201
41021210021102333
510011424241111
6322245240331
742404425543
oct11144112277
93160343551
101234212031
11583753848
122a54030a7
131689126a0
14b9cb7a23
15735476c1
hex499094bf

1234212031 has 16 divisors (see below), whose sum is σ = 1340696448. Its totient is φ = 1129420800.

The previous prime is 1234212017. The next prime is 1234212061. The reversal of 1234212031 is 1302124321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1234212031 - 219 = 1233687743 is a prime.

It is a super-2 number, since 2×12342120312 = 3046558674930289922, which contains 22 as substring.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234212061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1013535 + ... + 1014751.

It is an arithmetic number, because the mean of its divisors is an integer number (83793528).

Almost surely, 21234212031 is an apocalyptic number.

1234212031 is a deficient number, since it is larger than the sum of its proper divisors (106484417).

1234212031 is a wasteful number, since it uses less digits than its factorization.

1234212031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1234212031 is about 35131.3539591061. The cubic root of 1234212031 is about 1072.6628963093.

Adding to 1234212031 its reverse (1302124321), we get a palindrome (2536336352).

The spelling of 1234212031 in words is "one billion, two hundred thirty-four million, two hundred twelve thousand, thirty-one".

Divisors: 1 13 181 431 1217 2353 5603 15821 78011 220277 524527 1014143 2863601 6818851 94939387 1234212031