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20154510314 = 2312161150427
BaseRepresentation
bin10010110001010011…
…010110101111101010
31221000121021012112222
4102301103112233222
5312234023312224
613131525034042
71312306340201
oct226123265752
957017235488
1020154510314
1186027719a4
123aa5855922
131b926c5763
14d92a26238
157ce5dbb5e
hex4b14d6bea

20154510314 has 16 divisors (see below), whose sum is σ = 31221632256. Its totient is φ = 9747604800.

The previous prime is 20154510269. The next prime is 20154510317. The reversal of 20154510314 is 41301545102.

It is not an unprimeable number, because it can be changed into a prime (20154510317) 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 7 ways as a sum of consecutive naturals, for example, 58769 + ... + 209195.

It is an arithmetic number, because the mean of its divisors is an integer number (1951352016).

Almost surely, 220154510314 is an apocalyptic number.

20154510314 is a deficient number, since it is larger than the sum of its proper divisors (11067121942).

20154510314 is a wasteful number, since it uses less digits than its factorization.

20154510314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152621.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 20154510314 in words is "twenty billion, one hundred fifty-four million, five hundred ten thousand, three hundred fourteen".

Divisors: 1 2 31 62 2161 4322 66991 133982 150427 300854 4663237 9326474 325072747 650145494 10077255157 20154510314