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190044312 = 23347331509
BaseRepresentation
bin10110101001111…
…01100010011000
3111020121020210020
423110331202120
5342122404222
630505150440
74465231023
oct1324754230
9436536706
10190044312
1198303117
125378b420
13304ac973
141b3501ba
1511a3e65c
hexb53d898

190044312 has 64 divisors (see below), whose sum is σ = 487641600. Its totient is φ = 61691520.

The previous prime is 190044311. The next prime is 190044317. The reversal of 190044312 is 213440091.

190044312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1900443122 = 72233681047106688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190044311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373114 + ... + 373622.

It is an arithmetic number, because the mean of its divisors is an integer number (7619400).

Almost surely, 2190044312 is an apocalyptic number.

190044312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190044312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243820800).

190044312 is an abundant number, since it is smaller than the sum of its proper divisors (297597288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190044312 is a wasteful number, since it uses less digits than its factorization.

190044312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 190044312 is about 13785.6560235630. The cubic root of 190044312 is about 574.9343965482.

The spelling of 190044312 in words is "one hundred ninety million, forty-four thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 47 94 141 188 282 331 376 509 564 662 993 1018 1128 1324 1527 1986 2036 2648 3054 3972 4072 6108 7944 12216 15557 23923 31114 46671 47846 62228 71769 93342 95692 124456 143538 168479 186684 191384 287076 336958 373368 505437 574152 673916 1010874 1347832 2021748 4043496 7918513 15837026 23755539 31674052 47511078 63348104 95022156 190044312