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75246080 = 2957131719
BaseRepresentation
bin1000111110000…
…10101000000000
312020120220012212
410133002220000
5123230333310
611244441252
71602403220
oct437025000
9166526185
1075246080
1139524548
1221249228
1312787610
149dca080
156915205
hex47c2a00

75246080 has 320 divisors, whose sum is σ = 247484160. Its totient is φ = 21233664.

The previous prime is 75246077. The next prime is 75246091. The reversal of 75246080 is 8064257.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3960311 + ... + 3960329.

It is an arithmetic number, because the mean of its divisors is an integer number (773388).

Almost surely, 275246080 is an apocalyptic number.

75246080 is a gapful number since it is divisible by the number (70) 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 75246080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123742080).

75246080 is an abundant number, since it is smaller than the sum of its proper divisors (172238080).

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

75246080 is a wasteful number, since it uses less digits than its factorization.

75246080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 75246080 is about 8674.4498384624. The cubic root of 75246080 is about 422.1770555974.

The spelling of 75246080 in words is "seventy-five million, two hundred forty-six thousand, eighty".