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133288480 = 2551364081
BaseRepresentation
bin1111111000111…
…01001000100000
3100021210202102101
413330131020200
5233110212410
621120500144
73205635103
oct774351040
9307722371
10133288480
1169268676
123877a654
13217ca530
14139b873a
15ba7cd3a
hex7f1d220

133288480 has 48 divisors (see below), whose sum is σ = 339121944. Its totient is φ = 49213440.

The previous prime is 133288459. The next prime is 133288501. The reversal of 133288480 is 84882331.

It is an interprime number because it is at equal distance from previous prime (133288459) and next prime (133288501).

It can be written as a sum of positive squares in 4 ways, for example, as 72386064 + 60902416 = 8508^2 + 7804^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29961 + ... + 34120.

Almost surely, 2133288480 is an apocalyptic number.

133288480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133288480 is an abundant number, since it is smaller than the sum of its proper divisors (205833464).

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

133288480 is a wasteful number, since it uses less digits than its factorization.

133288480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64109 (or 64101 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 133288480 is about 11545.0630141199. The cubic root of 133288480 is about 510.8156626168.

The spelling of 133288480 in words is "one hundred thirty-three million, two hundred eighty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 64081 128162 256324 320405 512648 640810 833053 1025296 1281620 1666106 2050592 2563240 3332212 4165265 5126480 6664424 8330530 10252960 13328848 16661060 26657696 33322120 66644240 133288480