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190030712 = 2323753839
BaseRepresentation
bin10110101001110…
…10001101111000
3111020120120010112
423110322031320
5342121440322
630505003452
74465143254
oct1324721570
9436516115
10190030712
11982a3983
1253783588
13304a6711
141b349264
1511a3a5e2
hexb53a378

190030712 has 8 divisors (see below), whose sum is σ = 356307600. Its totient is φ = 95015352.

The previous prime is 190030699. The next prime is 190030727. The reversal of 190030712 is 217030091.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1900307122 = 72223343006453888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11876912 + ... + 11876927.

It is an arithmetic number, because the mean of its divisors is an integer number (44538450).

Almost surely, 2190030712 is an apocalyptic number.

It is an amenable number.

190030712 is a deficient number, since it is larger than the sum of its proper divisors (166276888).

190030712 is a wasteful number, since it uses less digits than its factorization.

190030712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23753845 (or 23753841 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 190030712 is about 13785.1627484045. The cubic root of 190030712 is about 574.9206816865.

The spelling of 190030712 in words is "one hundred ninety million, thirty thousand, seven hundred twelve".

Divisors: 1 2 4 8 23753839 47507678 95015356 190030712