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40308122450 = 252283932
BaseRepresentation
bin100101100010100011…
…010010001101010010
310212001010211210001002
4211202203102031102
51130022334404300
630303422542002
72624605246661
oct454243221522
9125033753032
1040308122450
111610497aaa2
12798b137902
133a54b6543b
141d45496dd8
1510ada9c5d5
hex9628d2352

40308122450 has 18 divisors (see below), whose sum is σ = 74975748399. Its totient is φ = 16122681120.

The previous prime is 40308122431. The next prime is 40308122461. The reversal of 40308122450 is 5422180304.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 36870528289 + 3437594161 = 192017^2 + 58631^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=141965.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1405454 + ... + 1433846.

Almost surely, 240308122450 is an apocalyptic number.

40308122450 is a deficient number, since it is larger than the sum of its proper divisors (34667625949).

40308122450 is an frugal number, since it uses more digits than its factorization.

40308122450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56798 (or 28400 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 40308122450 in words is "forty billion, three hundred eight million, one hundred twenty-two thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 28393 56786 141965 283930 709825 1419650 806162449 1612324898 4030812245 8061624490 20154061225 40308122450