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190030 = 2531613
BaseRepresentation
bin101110011001001110
3100122200011
4232121032
522040110
64023434
71421011
oct563116
9318604
10190030
1111a855
1291b7a
1368659
144d378
153b48a
hex2e64e

190030 has 16 divisors (see below), whose sum is σ = 353664. Its totient is φ = 73440.

The previous prime is 190027. The next prime is 190031. The reversal of 190030 is 30091.

It is a happy number.

It is a super-2 number, since 2×1900302 = 72222801800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190031) 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, 4 + ... + 616.

It is an arithmetic number, because the mean of its divisors is an integer number (22104).

2190030 is an apocalyptic number.

190030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190030 is a deficient number, since it is larger than the sum of its proper divisors (163634).

190030 is a wasteful number, since it uses less digits than its factorization.

190030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 190030 is about 435.9243053559. The cubic root of 190030 is about 57.4919963655.

The spelling of 190030 in words is "one hundred ninety thousand, thirty".

Divisors: 1 2 5 10 31 62 155 310 613 1226 3065 6130 19003 38006 95015 190030