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1929130 = 257231127
BaseRepresentation
bin111010110111110101010
310122000021021
413112332222
5443213010
6105203054
722253200
oct7267652
93560237
101929130
1110a8425
1279048a
135270c8
14383070
152818da
hex1d6faa

1929130 has 48 divisors (see below), whose sum is σ = 4202496. Its totient is φ = 635040.

The previous prime is 1929121. The next prime is 1929149. The reversal of 1929130 is 319291.

It is a junction number, because it is equal to n+sod(n) for n = 1929095 and 1929104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15127 + ... + 15253.

It is an arithmetic number, because the mean of its divisors is an integer number (87552).

21929130 is an apocalyptic number.

1929130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1929130 is an abundant number, since it is smaller than the sum of its proper divisors (2273366).

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

1929130 is a wasteful number, since it uses less digits than its factorization.

1929130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 1929130 is about 1388.9312437986. The cubic root of 1929130 is about 124.4859959625.

It can be divided in two parts, 19291 and 30, that added together give a square (19321 = 1392).

The spelling of 1929130 in words is "one million, nine hundred twenty-nine thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 31 35 49 62 70 98 127 155 217 245 254 310 434 490 635 889 1085 1270 1519 1778 2170 3038 3937 4445 6223 7595 7874 8890 12446 15190 19685 27559 31115 39370 55118 62230 137795 192913 275590 385826 964565 1929130