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19069992 = 233429429
BaseRepresentation
bin100100010111…
…1110000101000
31022212212010000
41020233300220
514340214432
61520423000
7321043434
oct110576050
938785100
1019069992
11a845627
126477a60
133c49026
1427659c4
151a1a57c
hex122fc28

19069992 has 40 divisors (see below), whose sum is σ = 53415450. Its totient is φ = 6356448.

The previous prime is 19069987. The next prime is 19070011. The reversal of 19069992 is 29996091.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12068676 + 7001316 = 3474^2 + 2646^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14067 + ... + 15362.

Almost surely, 219069992 is an apocalyptic number.

19069992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19069992 is an abundant number, since it is smaller than the sum of its proper divisors (34345458).

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

19069992 is a wasteful number, since it uses less digits than its factorization.

19069992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29447 (or 29434 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 19069992 is about 4366.9201962024. The cubic root of 19069992 is about 267.1674243457.

The spelling of 19069992 in words is "nineteen million, sixty-nine thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 29429 58858 88287 117716 176574 235432 264861 353148 529722 706296 794583 1059444 1589166 2118888 2383749 3178332 4767498 6356664 9534996 19069992