Search a number
-
+
40578031374 = 23173113999173
BaseRepresentation
bin100101110010101000…
…111001111100001110
310212201221201120110220
4211302220321330032
51131100434000444
630350304012210
72634363401316
oct456250717416
9125657646426
1040578031374
1116233271621
127a45601066
133a98a5896a
141d6d276446
1510c7615619
hex972a39f0e

40578031374 has 64 divisors (see below), whose sum is σ = 88774963200. Its totient is φ = 12309557760.

The previous prime is 40578031367. The next prime is 40578031379. The reversal of 40578031374 is 47313087504.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40578031379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4419052 + ... + 4428224.

It is an arithmetic number, because the mean of its divisors is an integer number (1387108800).

Almost surely, 240578031374 is an apocalyptic number.

40578031374 is an abundant number, since it is smaller than the sum of its proper divisors (48196931826).

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

40578031374 is a wasteful number, since it uses less digits than its factorization.

40578031374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 40578031374 in words is "forty billion, five hundred seventy-eight million, thirty-one thousand, three hundred seventy-four".

Divisors: 1 2 3 6 17 31 34 51 62 93 102 186 527 1054 1399 1581 2798 3162 4197 8394 9173 18346 23783 27519 43369 47566 55038 71349 86738 130107 142698 155941 260214 284363 311882 467823 568726 737273 853089 935646 1474546 1706178 2211819 4423638 4834171 9668342 12833027 14502513 25666054 29005026 38499081 76998162 218161459 397823837 436322918 654484377 795647674 1193471511 1308968754 2386943022 6763005229 13526010458 20289015687 40578031374