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190192093 = 713383149
BaseRepresentation
bin10110101011000…
…01100111011101
3111020212202111121
423111201213131
5342142121333
630512250541
74466414620
oct1325414735
9436782447
10190192093
11983a4153
1253840a51
1330532000
141b38bdb7
1511a6d32d
hexb5619dd

190192093 has 32 divisors (see below), whose sum is σ = 239904000. Its totient is φ = 147670848.

The previous prime is 190192091. The next prime is 190192151. The reversal of 190192093 is 390291091.

It is not a de Polignac number, because 190192093 - 21 = 190192091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190192091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1276383 + ... + 1276531.

It is an arithmetic number, because the mean of its divisors is an integer number (7497000).

Almost surely, 2190192093 is an apocalyptic number.

190192093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

190192093 is a deficient number, since it is larger than the sum of its proper divisors (49711907).

190192093 is an equidigital number, since it uses as much as digits as its factorization.

190192093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 190192093 is about 13791.0149372698. The cubic root of 190192093 is about 575.0833834967.

It can be divided in two parts, 19019 and 2093, that added together give a palindrome (21112).

The spelling of 190192093 in words is "one hundred ninety million, one hundred ninety-two thousand, ninety-three".

Divisors: 1 7 13 83 91 149 169 581 1043 1079 1183 1937 2197 7553 12367 13559 14027 15379 25181 86569 98189 160771 176267 182351 327353 1125397 1276457 2090023 2291471 14630161 27170299 190192093