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2056918454 = 21954129433
BaseRepresentation
bin111101010011010…
…0001010110110110
312022100110021122222
41322212201112312
513203032342304
6540034522342
7101654342543
oct17246412666
95270407588
102056918454
11966093308
12494a363b2
1326a1b5816
14157273bca
15c08a74be
hex7a9a15b6

2056918454 has 8 divisors (see below), whose sum is σ = 3247766040. Its totient is φ = 974329776.

The previous prime is 2056918421. The next prime is 2056918469. The reversal of 2056918454 is 4548196502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27064679 + ... + 27064754.

It is an arithmetic number, because the mean of its divisors is an integer number (405970755).

Almost surely, 22056918454 is an apocalyptic number.

2056918454 is a deficient number, since it is larger than the sum of its proper divisors (1190847586).

2056918454 is a wasteful number, since it uses less digits than its factorization.

2056918454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54129454.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 2056918454 is about 45353.2628815171. The cubic root of 2056918454 is about 1271.7615528640.

The spelling of 2056918454 in words is "two billion, fifty-six million, nine hundred eighteen thousand, four hundred fifty-four".

Divisors: 1 2 19 38 54129433 108258866 1028459227 2056918454