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75313152 = 21234227
BaseRepresentation
bin1000111110100…
…11000000000000
312020201022020000
410133103000000
5123240010102
611250120000
71603102605
oct437230000
9166638200
1075313152
113956a982
1221280000
13127abcc5
14a0066ac
15692a01c
hex47d3000

75313152 has 130 divisors (see below), whose sum is σ = 225973308. Its totient is φ = 24993792.

The previous prime is 75313141. The next prime is 75313157. The reversal of 75313152 is 25131357.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (75313157) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 331663 + ... + 331889.

Almost surely, 275313152 is an apocalyptic number.

75313152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75313152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112986654).

75313152 is an abundant number, since it is smaller than the sum of its proper divisors (150660156).

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

75313152 is an equidigital number, since it uses as much as digits as its factorization.

75313152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 232 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 75313152 is about 8678.3150438320. The cubic root of 75313152 is about 422.3024568153.

The spelling of 75313152 in words is "seventy-five million, three hundred thirteen thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 227 256 288 324 384 432 454 512 576 648 681 768 864 908 1024 1152 1296 1362 1536 1728 1816 2043 2048 2304 2592 2724 3072 3456 3632 4086 4096 4608 5184 5448 6129 6144 6912 7264 8172 9216 10368 10896 12258 12288 13824 14528 16344 18387 18432 20736 21792 24516 27648 29056 32688 36774 36864 41472 43584 49032 55296 58112 65376 73548 82944 87168 98064 110592 116224 130752 147096 165888 174336 196128 232448 261504 294192 331776 348672 392256 464896 523008 588384 697344 784512 929792 1046016 1176768 1394688 1569024 2092032 2353536 2789376 3138048 4184064 4707072 6276096 8368128 9414144 12552192 18828288 25104384 37656576 75313152