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19199029 = 411972377
BaseRepresentation
bin100100100111…
…1010000110101
31100010102010011
41021033100311
514403332104
61523300221
7322121563
oct111172065
940112104
1019199029
11a923573
12651a671
133c92995
14279aa33
151a43904
hex124f435

19199029 has 8 divisors (see below), whose sum is σ = 19775448. Its totient is φ = 18627840.

The previous prime is 19199023. The next prime is 19199053. The reversal of 19199029 is 92099191.

It can be written as a sum of positive squares in 4 ways, for example, as 2634129 + 16564900 = 1623^2 + 4070^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19199029 - 27 = 19198901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19198982 and 19199000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19199023) 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, 6889 + ... + 9265.

It is an arithmetic number, because the mean of its divisors is an integer number (2471931).

Almost surely, 219199029 is an apocalyptic number.

It is an amenable number.

19199029 is a deficient number, since it is larger than the sum of its proper divisors (576419).

19199029 is a wasteful number, since it uses less digits than its factorization.

19199029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615.

The product of its (nonzero) digits is 13122, while the sum is 40.

The square root of 19199029 is about 4381.6696589314. The cubic root of 19199029 is about 267.7686659332.

The spelling of 19199029 in words is "nineteen million, one hundred ninety-nine thousand, twenty-nine".

Divisors: 1 41 197 2377 8077 97457 468269 19199029