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3211242431 = 131197124433
BaseRepresentation
bin1011111101100111…
…1010101110111111
322021210112000110212
42333121322232333
523034034224211
61250352023035
7142402052555
oct27731725677
98253460425
103211242431
1113a8731a71
12757531a7b
133c23a6a67
142266b3bd5
1513bdbe38b
hexbf67abbf

3211242431 has 8 divisors (see below), whose sum is σ = 3252207024. Its totient is φ = 3170527360.

The previous prime is 3211242409. The next prime is 3211242439. The reversal of 3211242431 is 1342421123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3211242431 is a prime.

It is a super-2 number, since 2×32112424312 = 20624155901309579522, 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 = 3211242397 and 3211242406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211242439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36410 + ... + 88023.

It is an arithmetic number, because the mean of its divisors is an integer number (406525878).

Almost surely, 23211242431 is an apocalyptic number.

3211242431 is a deficient number, since it is larger than the sum of its proper divisors (40964593).

3211242431 is a wasteful number, since it uses less digits than its factorization.

3211242431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124761.

The product of its digits is 1152, while the sum is 23.

The square root of 3211242431 is about 56667.8253597224. The cubic root of 3211242431 is about 1475.3363103283.

Adding to 3211242431 its reverse (1342421123), we get a palindrome (4553663554).

The spelling of 3211242431 in words is "three billion, two hundred eleven million, two hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 131 197 25807 124433 16300723 24513301 3211242431