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20193492 = 22311152981
BaseRepresentation
bin100110100001…
…0000011010100
31101222221021010
41031002003110
520132142432
62000452220
7333433104
oct115020324
941887233
1020193492
1110442740
12691a070
134250517
142979204
151b8d3cc
hex13420d4

20193492 has 24 divisors (see below), whose sum is σ = 51401952. Its totient is φ = 6119200.

The previous prime is 20193469. The next prime is 20193521. The reversal of 20193492 is 29439102.

It is a super-3 number, since 3×201934923 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76359 + ... + 76622.

It is an arithmetic number, because the mean of its divisors is an integer number (2141748).

Almost surely, 220193492 is an apocalyptic number.

20193492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20193492 is an abundant number, since it is smaller than the sum of its proper divisors (31208460).

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

20193492 is a wasteful number, since it uses less digits than its factorization.

20193492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152999 (or 152997 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 20193492 is about 4493.7169470273. The cubic root of 20193492 is about 272.3143172935.

The spelling of 20193492 in words is "twenty million, one hundred ninety-three thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 152981 305962 458943 611924 917886 1682791 1835772 3365582 5048373 6731164 10096746 20193492