Search a number
-
+
144838503031 = 1729433678499
BaseRepresentation
bin1000011011100100001…
…1000010101001110111
3111211212001012022010011
42012321003002221313
54333112124044111
6150312103441051
713315142651065
oct2067103025167
9454761168104
10144838503031
1156475617082
12240a2156187
1310873127941
147020091035
153b7a8c7021
hex21b90c2a77

144838503031 has 16 divisors (see below), whose sum is σ = 159013260000. Its totient is φ = 131313788928.

The previous prime is 144838503013. The next prime is 144838503049. The reversal of 144838503031 is 130305838441.

It is an interprime number because it is at equal distance from previous prime (144838503013) and next prime (144838503049).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144838503031 is a prime.

It is a super-2 number, since 2×1448385030312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144838503331) 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, 125781 + ... + 552718.

It is an arithmetic number, because the mean of its divisors is an integer number (9938328750).

Almost surely, 2144838503031 is an apocalyptic number.

144838503031 is a deficient number, since it is larger than the sum of its proper divisors (14174756969).

144838503031 is a wasteful number, since it uses less digits than its factorization.

144838503031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678978.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 144838503031 in words is "one hundred forty-four billion, eight hundred thirty-eight million, five hundred three thousand, thirty-one".

Divisors: 1 17 29 433 493 7361 12557 213469 678499 11534483 19676471 293790067 334500007 4994431139 8519911943 144838503031