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40205012130 = 23251947500249
BaseRepresentation
bin100101011100011001…
…111100110010100010
310211202221211020021100
4211130121330302202
51124314440342010
630245300535230
72622213651543
oct453431746242
9124687736240
1040205012130
1116061754758
1279606b1516
133a396a300a
141d358d64ca
1510a49d12c0
hex95c67cca2

40205012130 has 96 divisors (see below), whose sum is σ = 112376160000. Its totient is φ = 9940928256.

The previous prime is 40205012119. The next prime is 40205012131. The reversal of 40205012130 is 3121050204.

40205012130 is a `hidden beast` number, since 402 + 0 + 50 + 1 + 213 + 0 = 666.

40205012130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40205012131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 169755 + ... + 330494.

It is an arithmetic number, because the mean of its divisors is an integer number (1170585000).

Almost surely, 240205012130 is an apocalyptic number.

40205012130 is an abundant number, since it is smaller than the sum of its proper divisors (72171147870).

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

40205012130 is a wasteful number, since it uses less digits than its factorization.

40205012130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500328 (or 500325 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 40205012130 its reverse (3121050204), we get a palindrome (43326062334).

The spelling of 40205012130 in words is "forty billion, two hundred five million, twelve thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 38 45 47 57 90 94 95 114 141 171 190 235 282 285 342 423 470 570 705 846 855 893 1410 1710 1786 2115 2679 4230 4465 5358 8037 8930 13395 16074 26790 40185 80370 500249 1000498 1500747 2501245 3001494 4502241 5002490 7503735 9004482 9504731 15007470 19009462 22511205 23511703 28514193 45022410 47023406 47523655 57028386 70535109 85542579 95047310 117558515 141070218 142570965 171085158 211605327 235117030 285141930 352675545 423210654 427712895 446722357 705351090 855425790 893444714 1058026635 1340167071 2116053270 2233611785 2680334142 4020501213 4467223570 6700835355 8041002426 13401670710 20102506065 40205012130