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40203114021 = 347977091031
BaseRepresentation
bin100101011100010010…
…101101011000100101
310211202211020210120000
4211130102231120211
51124313444122041
630245152131513
72622161554650
oct453422553045
9124684223500
1040203114021
1116060678674
12795bb36b99
133a3918a085
141d35560897
1510a4758bb6
hex95c4ad625

40203114021 has 80 divisors (see below), whose sum is σ = 69508750080. Its totient is φ = 22682280960.

The previous prime is 40203113989. The next prime is 40203114041. The reversal of 40203114021 is 12041130204.

It is not a de Polignac number, because 40203114021 - 25 = 40203113989 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40203113985 and 40203114003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40203114041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 38993776 + ... + 38994806.

It is an arithmetic number, because the mean of its divisors is an integer number (868859376).

Almost surely, 240203114021 is an apocalyptic number.

It is an amenable number.

40203114021 is a deficient number, since it is larger than the sum of its proper divisors (29305636059).

40203114021 is a wasteful number, since it uses less digits than its factorization.

40203114021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856 (or 1847 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 40203114021 its reverse (12041130204), we get a palindrome (52244244225).

The spelling of 40203114021 in words is "forty billion, two hundred three million, one hundred fourteen thousand, twenty-one".

Divisors: 1 3 7 9 21 27 63 81 97 189 291 567 679 709 873 1031 2037 2127 2619 3093 4963 6111 6381 7217 7857 9279 14889 18333 19143 21651 27837 44667 54999 57429 64953 68773 83511 100007 134001 194859 206319 300021 402003 481411 584577 618957 700049 730979 900063 1444233 1856871 2100147 2192937 2700189 4332699 5116853 5570613 6300441 6578811 8100567 12998097 15350559 18901323 19736433 38994291 46051677 56703969 59209299 70904963 138155031 212714889 414465093 496334741 638144667 1489004223 1914434001 4467012669 5743302003 13401038007 40203114021