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20941464 = 233872561
BaseRepresentation
bin100111111100…
…0101010011000
31110101221021210
41033320222120
520330111324
62024503120
7342666555
oct117705230
943357253
1020941464
11109036a5
12701aaa0
134452acb
142ad1a2c
151c89d29
hex13f8a98

20941464 has 16 divisors (see below), whose sum is σ = 52353720. Its totient is φ = 6980480.

The previous prime is 20941457. The next prime is 20941471. The reversal of 20941464 is 46414902.

It is an interprime number because it is at equal distance from previous prime (20941457) and next prime (20941471).

It is a congruent number.

It is an unprimeable number.

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, 436257 + ... + 436304.

Almost surely, 220941464 is an apocalyptic number.

20941464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20941464 is an abundant number, since it is smaller than the sum of its proper divisors (31412256).

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

20941464 is a wasteful number, since it uses less digits than its factorization.

20941464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872570 (or 872566 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 20941464 is about 4576.1844368426. The cubic root of 20941464 is about 275.6358356197.

The spelling of 20941464 in words is "twenty million, nine hundred forty-one thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 24 872561 1745122 2617683 3490244 5235366 6980488 10470732 20941464