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19064830 = 253136091
BaseRepresentation
bin100100010111…
…0011111111110
31022212121000211
41020232133332
514340033310
61520343034
7321022411
oct110563776
938777024
1019064830
11a841764
126474a7a
133c46885
142763b78
151a18c8a
hex122e7fe

19064830 has 16 divisors (see below), whose sum is σ = 34431984. Its totient is φ = 7600320.

The previous prime is 19064821. The next prime is 19064839. The reversal of 19064830 is 3846091.

It is an interprime number because it is at equal distance from previous prime (19064821) and next prime (19064839).

It is a junction number, because it is equal to n+sod(n) for n = 19064792 and 19064801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19064839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85 + ... + 6175.

It is an arithmetic number, because the mean of its divisors is an integer number (2151999).

Almost surely, 219064830 is an apocalyptic number.

19064830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19064830 is a deficient number, since it is larger than the sum of its proper divisors (15367154).

19064830 is a wasteful number, since it uses less digits than its factorization.

19064830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6411.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 19064830 is about 4366.3291218139. The cubic root of 19064830 is about 267.1433159158.

The spelling of 19064830 in words is "nineteen million, sixty-four thousand, eight hundred thirty".

Divisors: 1 2 5 10 313 626 1565 3130 6091 12182 30455 60910 1906483 3812966 9532415 19064830