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11445210040 = 2351134337577
BaseRepresentation
bin10101010100011000…
…00000101110111000
31002112122011220121011
422222030000232320
5141414433210130
65131410323304
7553423452205
oct125214005670
932478156534
1011445210040
114943582780
122274b89534
131105238044
147a8082cac
1546ebd352a
hex2aa300bb8

11445210040 has 64 divisors (see below), whose sum is σ = 28104680160. Its totient is φ = 4160133120.

The previous prime is 11445210019. The next prime is 11445210041. The reversal of 11445210040 is 4001254411.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 11445209993 and 11445210020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11445210041) 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, 1506732 + ... + 1514308.

Almost surely, 211445210040 is an apocalyptic number.

11445210040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11445210040 is an abundant number, since it is smaller than the sum of its proper divisors (16659470120).

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

11445210040 is a wasteful number, since it uses less digits than its factorization.

11445210040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11032 (or 11028 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 11445210040 its reverse (4001254411), we get a palindrome (15446464451).

The spelling of 11445210040 in words is "eleven billion, four hundred forty-five million, two hundred ten thousand, forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 3433 6866 7577 13732 15154 17165 27464 30308 34330 37763 37885 60616 68660 75526 75770 83347 137320 151052 151540 166694 188815 302104 303080 333388 377630 416735 666776 755260 833470 1510520 1666940 3333880 26011841 52023682 104047364 130059205 208094728 260118410 286130251 520236820 572260502 1040473640 1144521004 1430651255 2289042008 2861302510 5722605020 11445210040