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19052930 = 25131131297
BaseRepresentation
bin100100010101…
…1100110000010
31022211222201002
41020223212002
514334143210
61520212002
7320642621
oct110534602
938758632
1019052930
11a833826
12646a002
133c41330
14275d6b8
151a154a5
hex122b982

19052930 has 32 divisors (see below), whose sum is σ = 37288944. Its totient is φ = 6967296.

The previous prime is 19052893. The next prime is 19052951. The reversal of 19052930 is 3925091.

It can be written as a sum of positive squares in 8 ways, for example, as 5340721 + 13712209 = 2311^2 + 3703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19052893 and 19052902.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14042 + ... + 15338.

Almost surely, 219052930 is an apocalyptic number.

19052930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19052930 is a deficient number, since it is larger than the sum of its proper divisors (18236014).

19052930 is a wasteful number, since it uses less digits than its factorization.

19052930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 19052930 is about 4364.9662083457. The cubic root of 19052930 is about 267.0877219745.

The spelling of 19052930 in words is "nineteen million, fifty-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 13 26 65 113 130 226 565 1130 1297 1469 2594 2938 6485 7345 12970 14690 16861 33722 84305 146561 168610 293122 732805 1465610 1905293 3810586 9526465 19052930