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64230452 = 221113112291
BaseRepresentation
bin1111010100000…
…1010000110100
311110212020121122
43311001100310
5112420333302
610212403112
71406643536
oct365012064
9143766548
1064230452
1133290320
1219616498
13103cb6b0
14875d856
15598b3a2
hex3d41434

64230452 has 24 divisors (see below), whose sum is σ = 132055392. Its totient is φ = 26949600.

The previous prime is 64230451. The next prime is 64230457. The reversal of 64230452 is 25403246.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64230451) by changing a digit.

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, 55574 + ... + 56717.

It is an arithmetic number, because the mean of its divisors is an integer number (5502308).

Almost surely, 264230452 is an apocalyptic number.

It is an amenable number.

64230452 is an abundant number, since it is smaller than the sum of its proper divisors (67824940).

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

64230452 is a wasteful number, since it uses less digits than its factorization.

64230452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112319 (or 112317 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 64230452 is about 8014.3903074407. The cubic root of 64230452 is about 400.4795332233.

Adding to 64230452 its reverse (25403246), we get a palindrome (89633698).

The spelling of 64230452 in words is "sixty-four million, two hundred thirty thousand, four hundred fifty-two".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 112291 224582 449164 1235201 1459783 2470402 2919566 4940804 5839132 16057613 32115226 64230452