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8003640419 = 31258181949
BaseRepresentation
bin1110111010000110…
…11101110001100011
3202122210021001121122
413131003131301203
5112342412443134
63402105442455
7402223551425
oct73503356143
922583231548
108003640419
113437934565
1216744a042b
139a7219108
1455cd74815
1531c9b902e
hex1dd0ddc63

8003640419 has 4 divisors (see below), whose sum is σ = 8261822400. Its totient is φ = 7745458440.

The previous prime is 8003640401. The next prime is 8003640431. The reversal of 8003640419 is 9140463008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8003640419 - 216 = 8003574883 is a prime.

It is a super-2 number, since 2×80036404192 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8003640499) 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 3 ways as a sum of consecutive naturals, for example, 129090944 + ... + 129091005.

It is an arithmetic number, because the mean of its divisors is an integer number (2065455600).

Almost surely, 28003640419 is an apocalyptic number.

8003640419 is a deficient number, since it is larger than the sum of its proper divisors (258181981).

8003640419 is a wasteful number, since it uses less digits than its factorization.

8003640419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258181980.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 8003640419 is about 89463.0673462519. The cubic root of 8003640419 is about 2000.3033222455.

The spelling of 8003640419 in words is "eight billion, three million, six hundred forty thousand, four hundred nineteen".

Divisors: 1 31 258181949 8003640419