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1928994 = 231916921
BaseRepresentation
bin111010110111100100010
310122000002020
413112330202
5443211434
6105202310
722252614
oct7267442
93560066
101928994
1110a8311
12790396
13527022
14382db4
15281849
hex1d6f22

1928994 has 16 divisors (see below), whose sum is σ = 4061280. Its totient is φ = 609120.

The previous prime is 1928989. The next prime is 1929043. The reversal of 1928994 is 4998291.

It is a super-3 number, since 3×19289943 = 21533463331410995352, which contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8347 + ... + 8574.

It is an arithmetic number, because the mean of its divisors is an integer number (253830).

21928994 is an apocalyptic number.

1928994 is an abundant number, since it is smaller than the sum of its proper divisors (2132286).

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

1928994 is a wasteful number, since it uses less digits than its factorization.

1928994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16945.

The product of its digits is 46656, while the sum is 42.

The square root of 1928994 is about 1388.8822844287. The cubic root of 1928994 is about 124.4830705517.

The spelling of 1928994 in words is "one million, nine hundred twenty-eight thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 19 38 57 114 16921 33842 50763 101526 321499 642998 964497 1928994