Search a number
-
+
40230344430 = 23252319434949
BaseRepresentation
bin100101011101111010…
…100101011011101110
310211211201111020122200
4211131322211123232
51124342432010210
630252003522330
72622642166623
oct453572453356
9124751436580
1040230344430
1116074a87241
1279690893a6
133a41a02543
141d3900c34a
1510a6d370c0
hex95dea56ee

40230344430 has 48 divisors (see below), whose sum is σ = 109146679200. Its totient is φ = 10261652544.

The previous prime is 40230344387. The next prime is 40230344437. The reversal of 40230344430 is 3444303204.

It is a super-2 number, since 2×402303444302 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40230344394 and 40230344403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40230344437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9715405 + ... + 9719544.

It is an arithmetic number, because the mean of its divisors is an integer number (2273889150).

Almost surely, 240230344430 is an apocalyptic number.

40230344430 is an abundant number, since it is smaller than the sum of its proper divisors (68916334770).

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

40230344430 is a wasteful number, since it uses less digits than its factorization.

40230344430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19434985 (or 19434982 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 40230344430 its reverse (3444303204), we get a palindrome (43674647634).

The spelling of 40230344430 in words is "forty billion, two hundred thirty million, three hundred forty-four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 115 138 207 230 345 414 690 1035 2070 19434949 38869898 58304847 97174745 116609694 174914541 194349490 291524235 349829082 447003827 583048470 874572705 894007654 1341011481 1749145410 2235019135 2682022962 4023034443 4470038270 6705057405 8046068886 13410114810 20115172215 40230344430