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19004970 = 2352772287
BaseRepresentation
bin100100001111…
…1111000101010
31022202112220210
41020133320222
514331124340
61515201550
7320353035
oct110377052
938675823
1019004970
11a800796
1264462b6
133c2555a
14274a01c
151a06180
hex121fe2a

19004970 has 32 divisors (see below), whose sum is σ = 45796608. Its totient is φ = 5047488.

The previous prime is 19004957. The next prime is 19004983. The reversal of 19004970 is 7940091.

It is an interprime number because it is at equal distance from previous prime (19004957) and next prime (19004983).

It is a super-2 number, since 2×190049702 = 722377769401800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7167 + ... + 9453.

It is an arithmetic number, because the mean of its divisors is an integer number (1431144).

Almost surely, 219004970 is an apocalyptic number.

19004970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19004970 is an abundant number, since it is smaller than the sum of its proper divisors (26791638).

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

19004970 is a wasteful number, since it uses less digits than its factorization.

19004970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 19004970 is about 4359.4690043628. The cubic root of 19004970 is about 266.8634294336.

The spelling of 19004970 in words is "nineteen million, four thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 277 554 831 1385 1662 2287 2770 4155 4574 6861 8310 11435 13722 22870 34305 68610 633499 1266998 1900497 3167495 3800994 6334990 9502485 19004970