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19036972 = 2213734739
BaseRepresentation
bin100100010011…
…1101100101100
31022211011211001
41020213230230
514333140342
61520010044
7320545243
oct110475454
938734731
1019036972
11a822839
126460924
133c36ca6
14275795a
151a108b7
hex1227b2c

19036972 has 12 divisors (see below), whose sum is σ = 33558840. Its totient is φ = 9448736.

The previous prime is 19036967. The next prime is 19036987. The reversal of 19036972 is 27963091.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16822 + ... + 17917.

It is an arithmetic number, because the mean of its divisors is an integer number (2796570).

Almost surely, 219036972 is an apocalyptic number.

It is an amenable number.

19036972 is a deficient number, since it is larger than the sum of its proper divisors (14521868).

19036972 is a wasteful number, since it uses less digits than its factorization.

19036972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34880 (or 34878 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 19036972 is about 4363.1378616771. The cubic root of 19036972 is about 267.0131336851.

The spelling of 19036972 in words is "nineteen million, thirty-six thousand, nine hundred seventy-two".

Divisors: 1 2 4 137 274 548 34739 69478 138956 4759243 9518486 19036972