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64480460 = 22511293093
BaseRepresentation
bin1111010111111…
…0010011001100
311111022221120012
43311332103030
5113001333320
610222012352
71412034452
oct365762314
9144287505
1064480460
1133441140
12197170b8
1310488425
1487c69d2
1559da4c5
hex3d7e4cc

64480460 has 24 divisors (see below), whose sum is σ = 147719376. Its totient is φ = 23447360.

The previous prime is 64480453. The next prime is 64480463. The reversal of 64480460 is 6408446.

It is not an unprimeable number, because it can be changed into a prime (64480463) 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, 146327 + ... + 146766.

It is an arithmetic number, because the mean of its divisors is an integer number (6154974).

Almost surely, 264480460 is an apocalyptic number.

It is an amenable number.

64480460 is an abundant number, since it is smaller than the sum of its proper divisors (83238916).

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

64480460 is a wasteful number, since it uses less digits than its factorization.

64480460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293113 (or 293111 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 64480460 is about 8029.9726026930. The cubic root of 64480460 is about 400.9984639340.

The spelling of 64480460 in words is "sixty-four million, four hundred eighty thousand, four hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 293093 586186 1172372 1465465 2930930 3224023 5861860 6448046 12896092 16120115 32240230 64480460