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3212424731 = 5361159921
BaseRepresentation
bin1011111101111001…
…1011011000011011
322021212202002021202
42333132123120123
523034340042411
61250433224415
7142415105525
oct27736333033
98255662252
103212424731
1113a936a27a
12757a0210b
133c26cbc49
14226900a15
1513c05483b
hexbf79b61b

3212424731 has 4 divisors (see below), whose sum is σ = 3212538264. Its totient is φ = 3212311200.

The previous prime is 3212424673. The next prime is 3212424739. The reversal of 3212424731 is 1374242123.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1374242123 = 3737141679.

It is a cyclic number.

It is not a de Polignac number, because 3212424731 - 210 = 3212423707 is a prime.

It is a super-2 number, since 2×32124247312 = 20639345304680844722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3212424694 and 3212424703.

It is not an unprimeable number, because it can be changed into a prime (3212424739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23651 + ... + 83571.

It is an arithmetic number, because the mean of its divisors is an integer number (803134566).

Almost surely, 23212424731 is an apocalyptic number.

3212424731 is a deficient number, since it is larger than the sum of its proper divisors (113533).

3212424731 is an equidigital number, since it uses as much as digits as its factorization.

3212424731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113532.

The product of its digits is 8064, while the sum is 29.

The square root of 3212424731 is about 56678.2562452304. The cubic root of 3212424731 is about 1475.5173488861.

Adding to 3212424731 its reverse (1374242123), we get a palindrome (4586666854).

The spelling of 3212424731 in words is "three billion, two hundred twelve million, four hundred twenty-four thousand, seven hundred thirty-one".

Divisors: 1 53611 59921 3212424731