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23496820 = 2251916151
BaseRepresentation
bin101100110100…
…0100001110100
31122012202120121
41121220201310
522003344240
62155341324
7403501564
oct131504164
948182517
1023496820
1112299566
127a51844
134b38c59
143198da4
1520e204a
hex1668874

23496820 has 24 divisors (see below), whose sum is σ = 49609728. Its totient is φ = 9348000.

The previous prime is 23496817. The next prime is 23496871. The reversal of 23496820 is 2869432.

It is a super-2 number, since 2×234968202 = 1104201100224800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745 + ... + 6895.

It is an arithmetic number, because the mean of its divisors is an integer number (2067072).

Almost surely, 223496820 is an apocalyptic number.

23496820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23496820 is an abundant number, since it is smaller than the sum of its proper divisors (26112908).

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

23496820 is a wasteful number, since it uses less digits than its factorization.

23496820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351 (or 6349 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 23496820 is about 4847.3518543634. The cubic root of 23496820 is about 286.4197952725.

The spelling of 23496820 in words is "twenty-three million, four hundred ninety-six thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 191 382 764 955 1910 3820 6151 12302 24604 30755 61510 123020 1174841 2349682 4699364 5874205 11748410 23496820