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64054431 = 3271016737
BaseRepresentation
bin1111010001011…
…0010010011111
311110112022011100
43310112102133
5112344220211
610204524143
71405311420
oct364262237
9143468140
1064054431
1133180051
1219550653
131036953c
148715647
155954156
hex3d1649f

64054431 has 12 divisors (see below), whose sum is σ = 105740752. Its totient is φ = 36602496.

The previous prime is 64054427. The next prime is 64054451. The reversal of 64054431 is 13445046.

It is not a de Polignac number, because 64054431 - 22 = 64054427 is a prime.

It is a super-2 number, since 2×640544312 = 8205940261467522, 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 = 64054395 and 64054404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64054421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 508306 + ... + 508431.

Almost surely, 264054431 is an apocalyptic number.

64054431 is a deficient number, since it is larger than the sum of its proper divisors (41686321).

64054431 is a wasteful number, since it uses less digits than its factorization.

64054431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016750 (or 1016747 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 64054431 is about 8003.4012144838. The cubic root of 64054431 is about 400.1133657841.

Adding to 64054431 its reverse (13445046), we get a palindrome (77499477).

The spelling of 64054431 in words is "sixty-four million, fifty-four thousand, four hundred thirty-one".

Divisors: 1 3 7 9 21 63 1016737 3050211 7117159 9150633 21351477 64054431