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245890514 = 21915142853
BaseRepresentation
bin11101010011111…
…11110111010010
3122010200112101002
432221333313102
51000421444024
640222142002
76044014652
oct1651776722
9563615332
10245890514
11116887201
126a421902
133bc3405c
142492a362
15168c16ae
hexea7fdd2

245890514 has 16 divisors (see below), whose sum is σ = 390828480. Its totient is φ = 115700400.

The previous prime is 245890501. The next prime is 245890517. The reversal of 245890514 is 415098542.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (245890517) 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, 15689 + ... + 27164.

It is an arithmetic number, because the mean of its divisors is an integer number (24426780).

Almost surely, 2245890514 is an apocalyptic number.

245890514 is a deficient number, since it is larger than the sum of its proper divisors (144937966).

245890514 is a wasteful number, since it uses less digits than its factorization.

245890514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43025.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 245890514 is about 15680.8964667203. The cubic root of 245890514 is about 626.4896851335.

The spelling of 245890514 in words is "two hundred forty-five million, eight hundred ninety thousand, five hundred fourteen".

Divisors: 1 2 19 38 151 302 2869 5738 42853 85706 814207 1628414 6470803 12941606 122945257 245890514