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19914956 = 2217292867
BaseRepresentation
bin100101111111…
…0000011001100
31101110210011222
41023332003030
520044234311
61550502512
7331163045
oct113760314
941423158
1019914956
1110272446
126804a38
1341837c9
1429058cc
151b35adb
hex12fe0cc

19914956 has 12 divisors (see below), whose sum is σ = 36901368. Its totient is φ = 9371712.

The previous prime is 19914949. The next prime is 19914959. The reversal of 19914956 is 65941991.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19914959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146366 + ... + 146501.

It is an arithmetic number, because the mean of its divisors is an integer number (3075114).

Almost surely, 219914956 is an apocalyptic number.

It is an amenable number.

19914956 is a deficient number, since it is larger than the sum of its proper divisors (16986412).

19914956 is a wasteful number, since it uses less digits than its factorization.

19914956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292888 (or 292886 counting only the distinct ones).

The product of its digits is 87480, while the sum is 44.

The square root of 19914956 is about 4462.6176174976. The cubic root of 19914956 is about 271.0564734819.

The spelling of 19914956 in words is "nineteen million, nine hundred fourteen thousand, nine hundred fifty-six".

Divisors: 1 2 4 17 34 68 292867 585734 1171468 4978739 9957478 19914956