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1954819068 = 223672431367
BaseRepresentation
bin111010010000100…
…0010101111111100
312001020100002122020
41310201002233330
513000413202233
6521550320140
766304454646
oct16441025774
95036302566
101954819068
11913498554
124667b9050
13251cb8597
14147897896
15b693a9b3
hex74842bfc

1954819068 has 24 divisors (see below), whose sum is σ = 4629324672. Its totient is φ = 641880624.

The previous prime is 1954819067. The next prime is 1954819079. The reversal of 1954819068 is 8609184591.

It is a super-3 number, since 3×19548190683 (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1954819068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1954819067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1214880 + ... + 1216487.

It is an arithmetic number, because the mean of its divisors is an integer number (192888528).

Almost surely, 21954819068 is an apocalyptic number.

It is an amenable number.

1954819068 is an abundant number, since it is smaller than the sum of its proper divisors (2674505604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1954819068 is a wasteful number, since it uses less digits than its factorization.

1954819068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431441 (or 2431439 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 51.

The square root of 1954819068 is about 44213.3358614796. The cubic root of 1954819068 is about 1250.3612967350.

The spelling of 1954819068 in words is "one billion, nine hundred fifty-four million, eight hundred nineteen thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 67 134 201 268 402 804 2431367 4862734 7294101 9725468 14588202 29176404 162901589 325803178 488704767 651606356 977409534 1954819068