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1890667763468 = 221142969721897
BaseRepresentation
bin11011100000110100100…
…101001001011100001100
320200202010212221202212022
4123200310211021130030
5221434041421412333
64004321043425312
7253411336553621
oct33406445113414
96622125852768
101890667763468
11669911732310
12266510985238
1310939b4ca8a3
146771a252348
15342a983ac98
hex1b83494970c

1890667763468 has 12 divisors (see below), whose sum is σ = 3609456639432. Its totient is φ = 859394437920.

The previous prime is 1890667763443. The next prime is 1890667763471. The reversal of 1890667763468 is 8643677660981.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21484860905 + ... + 21484860992.

It is an arithmetic number, because the mean of its divisors is an integer number (300788053286).

Almost surely, 21890667763468 is an apocalyptic number.

It is an amenable number.

1890667763468 is a deficient number, since it is larger than the sum of its proper divisors (1718788875964).

1890667763468 is a wasteful number, since it uses less digits than its factorization.

1890667763468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42969721912 (or 42969721910 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 71.

The spelling of 1890667763468 in words is "one trillion, eight hundred ninety billion, six hundred sixty-seven million, seven hundred sixty-three thousand, four hundred sixty-eight".

Divisors: 1 2 4 11 22 44 42969721897 85939443794 171878887588 472666940867 945333881734 1890667763468